Home / 10,787.85-16,177.32-4,213.08

Finding the Fourth Proportional to 10,787.85, 16,177.32 and 4,213.08

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Solution

The fourth proportional to 10,787.85, 16,177.32 and 4,213.08 is: 6,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.85 : 16,177.32 = 4,213.08 : x
  2. Step 2: Convert to fraction form
    10,787.85/16,177.32 = 4,213.08/x
  3. Step 3: Cross multiply
    10,787.85x = 16,177.32 × 4,213.08
  4. Step 4: Simplify right side
    10,787.85x = 68,156,343.35
  5. Step 5: Solve for x
    x = 68,156,343.35/10,787.85
  6. Step 6: Final answer
    x = 6,317.88

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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.