Home / 8,117.28-12,177.90-2,273.80

Finding the Fourth Proportional to 8,117.28, 12,177.90 and 2,273.80

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Solution

The fourth proportional to 8,117.28, 12,177.90 and 2,273.80 is: 3,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.28 : 12,177.90 = 2,273.80 : x
  2. Step 2: Convert to fraction form
    8,117.28/12,177.90 = 2,273.80/x
  3. Step 3: Cross multiply
    8,117.28x = 12,177.90 × 2,273.80
  4. Step 4: Simplify right side
    8,117.28x = 27,690,109.02
  5. Step 5: Solve for x
    x = 27,690,109.02/8,117.28
  6. Step 6: Final answer
    x = 3,411.25

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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.