Home / 12,915.46-19,373.19-4,156.52

Finding the Fourth Proportional to 12,915.46, 19,373.19 and 4,156.52

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Solution

The fourth proportional to 12,915.46, 19,373.19 and 4,156.52 is: 6,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.46 : 19,373.19 = 4,156.52 : x
  2. Step 2: Convert to fraction form
    12,915.46/19,373.19 = 4,156.52/x
  3. Step 3: Cross multiply
    12,915.46x = 19,373.19 × 4,156.52
  4. Step 4: Simplify right side
    12,915.46x = 80,525,100.13
  5. Step 5: Solve for x
    x = 80,525,100.13/12,915.46
  6. Step 6: Final answer
    x = 6,234.78

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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.