Home / 12,545.69-18,821.43-4,754.57

Finding the Fourth Proportional to 12,545.69, 18,821.43 and 4,754.57

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Solution

The fourth proportional to 12,545.69, 18,821.43 and 4,754.57 is: 7,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.69 : 18,821.43 = 4,754.57 : x
  2. Step 2: Convert to fraction form
    12,545.69/18,821.43 = 4,754.57/x
  3. Step 3: Cross multiply
    12,545.69x = 18,821.43 × 4,754.57
  4. Step 4: Simplify right side
    12,545.69x = 89,487,712.33
  5. Step 5: Solve for x
    x = 89,487,712.33/12,545.69
  6. Step 6: Final answer
    x = 7,132.95

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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.