Home / 9,420.76-13,001.16-5,229.10

Finding the Fourth Proportional to 9,420.76, 13,001.16 and 5,229.10

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Solution

The fourth proportional to 9,420.76, 13,001.16 and 5,229.10 is: 7,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.76 : 13,001.16 = 5,229.10 : x
  2. Step 2: Convert to fraction form
    9,420.76/13,001.16 = 5,229.10/x
  3. Step 3: Cross multiply
    9,420.76x = 13,001.16 × 5,229.10
  4. Step 4: Simplify right side
    9,420.76x = 67,984,365.76
  5. Step 5: Solve for x
    x = 67,984,365.76/9,420.76
  6. Step 6: Final answer
    x = 7,216.44

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Half scale
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Double scale
Find fourth proportional to 9,421.76, 13,002.54 and 5,230.10
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.