Home / 8,117.08-12,177.42-2,572.12

Finding the Fourth Proportional to 8,117.08, 12,177.42 and 2,572.12

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Solution

The fourth proportional to 8,117.08, 12,177.42 and 2,572.12 is: 3,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.08 : 12,177.42 = 2,572.12 : x
  2. Step 2: Convert to fraction form
    8,117.08/12,177.42 = 2,572.12/x
  3. Step 3: Cross multiply
    8,117.08x = 12,177.42 × 2,572.12
  4. Step 4: Simplify right side
    8,117.08x = 31,321,785.53
  5. Step 5: Solve for x
    x = 31,321,785.53/8,117.08
  6. Step 6: Final answer
    x = 3,858.75

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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.