Home / 12,759.12-19,148.04-8,375.04

Finding the Fourth Proportional to 12,759.12, 19,148.04 and 8,375.04

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Solution

The fourth proportional to 12,759.12, 19,148.04 and 8,375.04 is: 12,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.12 : 19,148.04 = 8,375.04 : x
  2. Step 2: Convert to fraction form
    12,759.12/19,148.04 = 8,375.04/x
  3. Step 3: Cross multiply
    12,759.12x = 19,148.04 × 8,375.04
  4. Step 4: Simplify right side
    12,759.12x = 160,365,600.92
  5. Step 5: Solve for x
    x = 160,365,600.92/12,759.12
  6. Step 6: Final answer
    x = 12,568.70

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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.