Home / 12,391.97-18,583.11-4,492.61

Finding the Fourth Proportional to 12,391.97, 18,583.11 and 4,492.61

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Solution

The fourth proportional to 12,391.97, 18,583.11 and 4,492.61 is: 6,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.97 : 18,583.11 = 4,492.61 : x
  2. Step 2: Convert to fraction form
    12,391.97/18,583.11 = 4,492.61/x
  3. Step 3: Cross multiply
    12,391.97x = 18,583.11 × 4,492.61
  4. Step 4: Simplify right side
    12,391.97x = 83,486,665.82
  5. Step 5: Solve for x
    x = 83,486,665.82/12,391.97
  6. Step 6: Final answer
    x = 6,737.16

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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.