Home / 11,385.43-15,712.70-6,349.99

Finding the Fourth Proportional to 11,385.43, 15,712.70 and 6,349.99

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Solution

The fourth proportional to 11,385.43, 15,712.70 and 6,349.99 is: 8,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.43 : 15,712.70 = 6,349.99 : x
  2. Step 2: Convert to fraction form
    11,385.43/15,712.70 = 6,349.99/x
  3. Step 3: Cross multiply
    11,385.43x = 15,712.70 × 6,349.99
  4. Step 4: Simplify right side
    11,385.43x = 99,775,487.87
  5. Step 5: Solve for x
    x = 99,775,487.87/11,385.43
  6. Step 6: Final answer
    x = 8,763.44

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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.