Home / 12,488.04-18,732.06-11,727.72

Finding the Fourth Proportional to 12,488.04, 18,732.06 and 11,727.72

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Solution

The fourth proportional to 12,488.04, 18,732.06 and 11,727.72 is: 17,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.04 : 18,732.06 = 11,727.72 : x
  2. Step 2: Convert to fraction form
    12,488.04/18,732.06 = 11,727.72/x
  3. Step 3: Cross multiply
    12,488.04x = 18,732.06 × 11,727.72
  4. Step 4: Simplify right side
    12,488.04x = 219,684,354.70
  5. Step 5: Solve for x
    x = 219,684,354.70/12,488.04
  6. Step 6: Final answer
    x = 17,591.58

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Similar ratio
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1.5x scale

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.