Home / 13,387.13-20,066.19-5,981.39

Finding the Fourth Proportional to 13,387.13, 20,066.19 and 5,981.39

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Solution

The fourth proportional to 13,387.13, 20,066.19 and 5,981.39 is: 8,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.13 : 20,066.19 = 5,981.39 : x
  2. Step 2: Convert to fraction form
    13,387.13/20,066.19 = 5,981.39/x
  3. Step 3: Cross multiply
    13,387.13x = 20,066.19 × 5,981.39
  4. Step 4: Simplify right side
    13,387.13x = 120,023,708.20
  5. Step 5: Solve for x
    x = 120,023,708.20/13,387.13
  6. Step 6: Final answer
    x = 8,965.60

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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.