Home / 13,531.17-20,290.05-4,168.92

Finding the Fourth Proportional to 13,531.17, 20,290.05 and 4,168.92

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Solution

The fourth proportional to 13,531.17, 20,290.05 and 4,168.92 is: 6,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.17 : 20,290.05 = 4,168.92 : x
  2. Step 2: Convert to fraction form
    13,531.17/20,290.05 = 4,168.92/x
  3. Step 3: Cross multiply
    13,531.17x = 20,290.05 × 4,168.92
  4. Step 4: Simplify right side
    13,531.17x = 84,587,595.25
  5. Step 5: Solve for x
    x = 84,587,595.25/13,531.17
  6. Step 6: Final answer
    x = 6,251.31

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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.