Home / 13,331.46-18,387.14-8,020.74

Finding the Fourth Proportional to 13,331.46, 18,387.14 and 8,020.74

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Solution

The fourth proportional to 13,331.46, 18,387.14 and 8,020.74 is: 11,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.46 : 18,387.14 = 8,020.74 : x
  2. Step 2: Convert to fraction form
    13,331.46/18,387.14 = 8,020.74/x
  3. Step 3: Cross multiply
    13,331.46x = 18,387.14 × 8,020.74
  4. Step 4: Simplify right side
    13,331.46x = 147,478,469.28
  5. Step 5: Solve for x
    x = 147,478,469.28/13,331.46
  6. Step 6: Final answer
    x = 11,062.44

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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.