Home / 14,490.98-21,732.45-5,129.76

Finding the Fourth Proportional to 14,490.98, 21,732.45 and 5,129.76

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Solution

The fourth proportional to 14,490.98, 21,732.45 and 5,129.76 is: 7,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.98 : 21,732.45 = 5,129.76 : x
  2. Step 2: Convert to fraction form
    14,490.98/21,732.45 = 5,129.76/x
  3. Step 3: Cross multiply
    14,490.98x = 21,732.45 × 5,129.76
  4. Step 4: Simplify right side
    14,490.98x = 111,482,353.45
  5. Step 5: Solve for x
    x = 111,482,353.45/14,490.98
  6. Step 6: Final answer
    x = 7,693.22

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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.