Home / 10,915.14-16,375.26-3,124.02

Finding the Fourth Proportional to 10,915.14, 16,375.26 and 3,124.02

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Solution

The fourth proportional to 10,915.14, 16,375.26 and 3,124.02 is: 4,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.14 : 16,375.26 = 3,124.02 : x
  2. Step 2: Convert to fraction form
    10,915.14/16,375.26 = 3,124.02/x
  3. Step 3: Cross multiply
    10,915.14x = 16,375.26 × 3,124.02
  4. Step 4: Simplify right side
    10,915.14x = 51,156,639.75
  5. Step 5: Solve for x
    x = 51,156,639.75/10,915.14
  6. Step 6: Final answer
    x = 4,686.76

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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.