Home / 12,915.62-19,373.44-5,124.44

Finding the Fourth Proportional to 12,915.62, 19,373.44 and 5,124.44

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Solution

The fourth proportional to 12,915.62, 19,373.44 and 5,124.44 is: 7,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.62 : 19,373.44 = 5,124.44 : x
  2. Step 2: Convert to fraction form
    12,915.62/19,373.44 = 5,124.44/x
  3. Step 3: Cross multiply
    12,915.62x = 19,373.44 × 5,124.44
  4. Step 4: Simplify right side
    12,915.62x = 99,277,908.38
  5. Step 5: Solve for x
    x = 99,277,908.38/12,915.62
  6. Step 6: Final answer
    x = 7,686.65

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Double scale
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Similar ratio
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1.5x scale

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.