Home / 12,545.43-18,708.51-10,992.66

Finding the Fourth Proportional to 12,545.43, 18,708.51 and 10,992.66

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Solution

The fourth proportional to 12,545.43, 18,708.51 and 10,992.66 is: 16,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.43 : 18,708.51 = 10,992.66 : x
  2. Step 2: Convert to fraction form
    12,545.43/18,708.51 = 10,992.66/x
  3. Step 3: Cross multiply
    12,545.43x = 18,708.51 × 10,992.66
  4. Step 4: Simplify right side
    12,545.43x = 205,656,289.54
  5. Step 5: Solve for x
    x = 205,656,289.54/12,545.43
  6. Step 6: Final answer
    x = 16,392.92

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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.