Home / 12,366.38-18,439.26-10,992.62

Finding the Fourth Proportional to 12,366.38, 18,439.26 and 10,992.62

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Solution

The fourth proportional to 12,366.38, 18,439.26 and 10,992.62 is: 16,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.38 : 18,439.26 = 10,992.62 : x
  2. Step 2: Convert to fraction form
    12,366.38/18,439.26 = 10,992.62/x
  3. Step 3: Cross multiply
    12,366.38x = 18,439.26 × 10,992.62
  4. Step 4: Simplify right side
    12,366.38x = 202,695,778.26
  5. Step 5: Solve for x
    x = 202,695,778.26/12,366.38
  6. Step 6: Final answer
    x = 16,390.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.