Home / 18,932.16-28,397.52-7,836

Finding the Fourth Proportional to 18,932.16, 28,397.52 and 7,836

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Solution

The fourth proportional to 18,932.16, 28,397.52 and 7,836 is: 11,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.16 : 28,397.52 = 7,836 : x
  2. Step 2: Convert to fraction form
    18,932.16/28,397.52 = 7,836/x
  3. Step 3: Cross multiply
    18,932.16x = 28,397.52 × 7,836
  4. Step 4: Simplify right side
    18,932.16x = 222,522,966.72
  5. Step 5: Solve for x
    x = 222,522,966.72/18,932.16
  6. Step 6: Final answer
    x = 11,753.70

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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.