Home / 8,142.60-12,220.22-3,760.52

Finding the Fourth Proportional to 8,142.60, 12,220.22 and 3,760.52

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Solution

The fourth proportional to 8,142.60, 12,220.22 and 3,760.52 is: 5,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.60 : 12,220.22 = 3,760.52 : x
  2. Step 2: Convert to fraction form
    8,142.60/12,220.22 = 3,760.52/x
  3. Step 3: Cross multiply
    8,142.60x = 12,220.22 × 3,760.52
  4. Step 4: Simplify right side
    8,142.60x = 45,954,381.71
  5. Step 5: Solve for x
    x = 45,954,381.71/8,142.60
  6. Step 6: Final answer
    x = 5,643.70

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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.