Home / 15,432.16-23,149.32-7,638.88

Finding the Fourth Proportional to 15,432.16, 23,149.32 and 7,638.88

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Solution

The fourth proportional to 15,432.16, 23,149.32 and 7,638.88 is: 11,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.16 : 23,149.32 = 7,638.88 : x
  2. Step 2: Convert to fraction form
    15,432.16/23,149.32 = 7,638.88/x
  3. Step 3: Cross multiply
    15,432.16x = 23,149.32 × 7,638.88
  4. Step 4: Simplify right side
    15,432.16x = 176,834,877.56
  5. Step 5: Solve for x
    x = 176,834,877.56/15,432.16
  6. Step 6: Final answer
    x = 11,458.85

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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.