Home / 10,912.43-16,376.88-8,747.30

Finding the Fourth Proportional to 10,912.43, 16,376.88 and 8,747.30

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Solution

The fourth proportional to 10,912.43, 16,376.88 and 8,747.30 is: 13,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.43 : 16,376.88 = 8,747.30 : x
  2. Step 2: Convert to fraction form
    10,912.43/16,376.88 = 8,747.30/x
  3. Step 3: Cross multiply
    10,912.43x = 16,376.88 × 8,747.30
  4. Step 4: Simplify right side
    10,912.43x = 143,253,482.42
  5. Step 5: Solve for x
    x = 143,253,482.42/10,912.43
  6. Step 6: Final answer
    x = 13,127.55

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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.