Home / 10,787.45-16,176.29-4,213.49

Finding the Fourth Proportional to 10,787.45, 16,176.29 and 4,213.49

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Solution

The fourth proportional to 10,787.45, 16,176.29 and 4,213.49 is: 6,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.45 : 16,176.29 = 4,213.49 : x
  2. Step 2: Convert to fraction form
    10,787.45/16,176.29 = 4,213.49/x
  3. Step 3: Cross multiply
    10,787.45x = 16,176.29 × 4,213.49
  4. Step 4: Simplify right side
    10,787.45x = 68,158,534.20
  5. Step 5: Solve for x
    x = 68,158,534.20/10,787.45
  6. Step 6: Final answer
    x = 6,318.32

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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.