Home / 11,553.78-15,943.85-6,517.92

Finding the Fourth Proportional to 11,553.78, 15,943.85 and 6,517.92

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Solution

The fourth proportional to 11,553.78, 15,943.85 and 6,517.92 is: 8,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.78 : 15,943.85 = 6,517.92 : x
  2. Step 2: Convert to fraction form
    11,553.78/15,943.85 = 6,517.92/x
  3. Step 3: Cross multiply
    11,553.78x = 15,943.85 × 6,517.92
  4. Step 4: Simplify right side
    11,553.78x = 103,920,706.20
  5. Step 5: Solve for x
    x = 103,920,706.20/11,553.78
  6. Step 6: Final answer
    x = 8,994.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.