Home / 13,957.23-20,938.92-7,726.33

Finding the Fourth Proportional to 13,957.23, 20,938.92 and 7,726.33

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Solution

The fourth proportional to 13,957.23, 20,938.92 and 7,726.33 is: 11,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.23 : 20,938.92 = 7,726.33 : x
  2. Step 2: Convert to fraction form
    13,957.23/20,938.92 = 7,726.33/x
  3. Step 3: Cross multiply
    13,957.23x = 20,938.92 × 7,726.33
  4. Step 4: Simplify right side
    13,957.23x = 161,780,934.10
  5. Step 5: Solve for x
    x = 161,780,934.10/13,957.23
  6. Step 6: Final answer
    x = 11,591.19

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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.