Home / 9,581.09-13,221.80-5,332.08

Finding the Fourth Proportional to 9,581.09, 13,221.80 and 5,332.08

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Solution

The fourth proportional to 9,581.09, 13,221.80 and 5,332.08 is: 7,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,581.09 : 13,221.80 = 5,332.08 : x
  2. Step 2: Convert to fraction form
    9,581.09/13,221.80 = 5,332.08/x
  3. Step 3: Cross multiply
    9,581.09x = 13,221.80 × 5,332.08
  4. Step 4: Simplify right side
    9,581.09x = 70,499,693.88
  5. Step 5: Solve for x
    x = 70,499,693.88/9,581.09
  6. Step 6: Final answer
    x = 7,358.22

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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.