Home / 10,916.46-16,375.29-3,125.07

Finding the Fourth Proportional to 10,916.46, 16,375.29 and 3,125.07

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Solution

The fourth proportional to 10,916.46, 16,375.29 and 3,125.07 is: 4,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.46 : 16,375.29 = 3,125.07 : x
  2. Step 2: Convert to fraction form
    10,916.46/16,375.29 = 3,125.07/x
  3. Step 3: Cross multiply
    10,916.46x = 16,375.29 × 3,125.07
  4. Step 4: Simplify right side
    10,916.46x = 51,173,927.52
  5. Step 5: Solve for x
    x = 51,173,927.52/10,916.46
  6. Step 6: Final answer
    x = 4,687.78

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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.