Home / 13,781.56-20,645.24-9,087.24

Finding the Fourth Proportional to 13,781.56, 20,645.24 and 9,087.24

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Solution

The fourth proportional to 13,781.56, 20,645.24 and 9,087.24 is: 13,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.56 : 20,645.24 = 9,087.24 : x
  2. Step 2: Convert to fraction form
    13,781.56/20,645.24 = 9,087.24/x
  3. Step 3: Cross multiply
    13,781.56x = 20,645.24 × 9,087.24
  4. Step 4: Simplify right side
    13,781.56x = 187,608,252.68
  5. Step 5: Solve for x
    x = 187,608,252.68/13,781.56
  6. Step 6: Final answer
    x = 13,612.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.