Home / 8,731.68-12,050.15-5,147.70

Finding the Fourth Proportional to 8,731.68, 12,050.15 and 5,147.70

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Solution

The fourth proportional to 8,731.68, 12,050.15 and 5,147.70 is: 7,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.68 : 12,050.15 = 5,147.70 : x
  2. Step 2: Convert to fraction form
    8,731.68/12,050.15 = 5,147.70/x
  3. Step 3: Cross multiply
    8,731.68x = 12,050.15 × 5,147.70
  4. Step 4: Simplify right side
    8,731.68x = 62,030,531.42
  5. Step 5: Solve for x
    x = 62,030,531.42/8,731.68
  6. Step 6: Final answer
    x = 7,104.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.