Home / 13,743.29-20,616.45-4,381.13

Finding the Fourth Proportional to 13,743.29, 20,616.45 and 4,381.13

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Solution

The fourth proportional to 13,743.29, 20,616.45 and 4,381.13 is: 6,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.29 : 20,616.45 = 4,381.13 : x
  2. Step 2: Convert to fraction form
    13,743.29/20,616.45 = 4,381.13/x
  3. Step 3: Cross multiply
    13,743.29x = 20,616.45 × 4,381.13
  4. Step 4: Simplify right side
    13,743.29x = 90,323,347.59
  5. Step 5: Solve for x
    x = 90,323,347.59/13,743.29
  6. Step 6: Final answer
    x = 6,572.18

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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.