Home / 13,531.97-20,301.04-6,138.55

Finding the Fourth Proportional to 13,531.97, 20,301.04 and 6,138.55

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Solution

The fourth proportional to 13,531.97, 20,301.04 and 6,138.55 is: 9,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.97 : 20,301.04 = 6,138.55 : x
  2. Step 2: Convert to fraction form
    13,531.97/20,301.04 = 6,138.55/x
  3. Step 3: Cross multiply
    13,531.97x = 20,301.04 × 6,138.55
  4. Step 4: Simplify right side
    13,531.97x = 124,618,949.09
  5. Step 5: Solve for x
    x = 124,618,949.09/13,531.97
  6. Step 6: Final answer
    x = 9,209.22

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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.