Home / 9,142.30-13,713.46-3,217.80

Finding the Fourth Proportional to 9,142.30, 13,713.46 and 3,217.80

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Solution

The fourth proportional to 9,142.30, 13,713.46 and 3,217.80 is: 4,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.30 : 13,713.46 = 3,217.80 : x
  2. Step 2: Convert to fraction form
    9,142.30/13,713.46 = 3,217.80/x
  3. Step 3: Cross multiply
    9,142.30x = 13,713.46 × 3,217.80
  4. Step 4: Simplify right side
    9,142.30x = 44,127,163.54
  5. Step 5: Solve for x
    x = 44,127,163.54/9,142.30
  6. Step 6: Final answer
    x = 4,826.70

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Similar ratio
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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.