Home / 10,812.25-16,192.25-5,251.87

Finding the Fourth Proportional to 10,812.25, 16,192.25 and 5,251.87

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Solution

The fourth proportional to 10,812.25, 16,192.25 and 5,251.87 is: 7,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.25 : 16,192.25 = 5,251.87 : x
  2. Step 2: Convert to fraction form
    10,812.25/16,192.25 = 5,251.87/x
  3. Step 3: Cross multiply
    10,812.25x = 16,192.25 × 5,251.87
  4. Step 4: Simplify right side
    10,812.25x = 85,039,592.01
  5. Step 5: Solve for x
    x = 85,039,592.01/10,812.25
  6. Step 6: Final answer
    x = 7,865.12

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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.