Home / 15,787.52-23,681.28-7,998.56

Finding the Fourth Proportional to 15,787.52, 23,681.28 and 7,998.56

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Solution

The fourth proportional to 15,787.52, 23,681.28 and 7,998.56 is: 11,997.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.52 : 23,681.28 = 7,998.56 : x
  2. Step 2: Convert to fraction form
    15,787.52/23,681.28 = 7,998.56/x
  3. Step 3: Cross multiply
    15,787.52x = 23,681.28 × 7,998.56
  4. Step 4: Simplify right side
    15,787.52x = 189,416,138.96
  5. Step 5: Solve for x
    x = 189,416,138.96/15,787.52
  6. Step 6: Final answer
    x = 11,997.84

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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.