Home / 12,545.18-18,708.14-10,992.41

Finding the Fourth Proportional to 12,545.18, 18,708.14 and 10,992.41

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Solution

The fourth proportional to 12,545.18, 18,708.14 and 10,992.41 is: 16,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.18 : 18,708.14 = 10,992.41 : x
  2. Step 2: Convert to fraction form
    12,545.18/18,708.14 = 10,992.41/x
  3. Step 3: Cross multiply
    12,545.18x = 18,708.14 × 10,992.41
  4. Step 4: Simplify right side
    12,545.18x = 205,647,545.22
  5. Step 5: Solve for x
    x = 205,647,545.22/12,545.18
  6. Step 6: Final answer
    x = 16,392.55

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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.