Home / 8,249.28-12,370.80-5,124.72

Finding the Fourth Proportional to 8,249.28, 12,370.80 and 5,124.72

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Solution

The fourth proportional to 8,249.28, 12,370.80 and 5,124.72 is: 7,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.28 : 12,370.80 = 5,124.72 : x
  2. Step 2: Convert to fraction form
    8,249.28/12,370.80 = 5,124.72/x
  3. Step 3: Cross multiply
    8,249.28x = 12,370.80 × 5,124.72
  4. Step 4: Simplify right side
    8,249.28x = 63,396,886.18
  5. Step 5: Solve for x
    x = 63,396,886.18/8,249.28
  6. Step 6: Final answer
    x = 7,685.14

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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.