Home / 13,753.71-20,630.52-4,988.61

Finding the Fourth Proportional to 13,753.71, 20,630.52 and 4,988.61

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Solution

The fourth proportional to 13,753.71, 20,630.52 and 4,988.61 is: 7,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.71 : 20,630.52 = 4,988.61 : x
  2. Step 2: Convert to fraction form
    13,753.71/20,630.52 = 4,988.61/x
  3. Step 3: Cross multiply
    13,753.71x = 20,630.52 × 4,988.61
  4. Step 4: Simplify right side
    13,753.71x = 102,917,618.38
  5. Step 5: Solve for x
    x = 102,917,618.38/13,753.71
  6. Step 6: Final answer
    x = 7,482.90

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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.