Home / 12,488.62-18,727.32-4,691.92

Finding the Fourth Proportional to 12,488.62, 18,727.32 and 4,691.92

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Solution

The fourth proportional to 12,488.62, 18,727.32 and 4,691.92 is: 7,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.62 : 18,727.32 = 4,691.92 : x
  2. Step 2: Convert to fraction form
    12,488.62/18,727.32 = 4,691.92/x
  3. Step 3: Cross multiply
    12,488.62x = 18,727.32 × 4,691.92
  4. Step 4: Simplify right side
    12,488.62x = 87,867,087.25
  5. Step 5: Solve for x
    x = 87,867,087.25/12,488.62
  6. Step 6: Final answer
    x = 7,035.77

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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.