Home / 9,580.76-13,221.45-5,332.21

Finding the Fourth Proportional to 9,580.76, 13,221.45 and 5,332.21

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Solution

The fourth proportional to 9,580.76, 13,221.45 and 5,332.21 is: 7,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,580.76 : 13,221.45 = 5,332.21 : x
  2. Step 2: Convert to fraction form
    9,580.76/13,221.45 = 5,332.21/x
  3. Step 3: Cross multiply
    9,580.76x = 13,221.45 × 5,332.21
  4. Step 4: Simplify right side
    9,580.76x = 70,499,547.90
  5. Step 5: Solve for x
    x = 70,499,547.90/9,580.76
  6. Step 6: Final answer
    x = 7,358.45

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Find fourth proportional to 4,790.38, 6,610.73 and 2,666.11
Half scale
Find fourth proportional to 19,161.52, 26,442.90 and 10,664.42
Double scale
Find fourth proportional to 9,581.76, 13,222.83 and 5,333.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.