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Finding the Fourth Proportional to 13,722, 18,937.17 and 7,753.52

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Solution

The fourth proportional to 13,722, 18,937.17 and 7,753.52 is: 10,700.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722 : 18,937.17 = 7,753.52 : x
  2. Step 2: Convert to fraction form
    13,722/18,937.17 = 7,753.52/x
  3. Step 3: Cross multiply
    13,722x = 18,937.17 × 7,753.52
  4. Step 4: Simplify right side
    13,722x = 146,829,631.65
  5. Step 5: Solve for x
    x = 146,829,631.65/13,722
  6. Step 6: Final answer
    x = 10,700.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.