Home / 7,141.20-9,849.80-6,144.76

Finding the Fourth Proportional to 7,141.20, 9,849.80 and 6,144.76

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Solution

The fourth proportional to 7,141.20, 9,849.80 and 6,144.76 is: 8,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.20 : 9,849.80 = 6,144.76 : x
  2. Step 2: Convert to fraction form
    7,141.20/9,849.80 = 6,144.76/x
  3. Step 3: Cross multiply
    7,141.20x = 9,849.80 × 6,144.76
  4. Step 4: Simplify right side
    7,141.20x = 60,524,684.72
  5. Step 5: Solve for x
    x = 60,524,684.72/7,141.20
  6. Step 6: Final answer
    x = 8,475.43

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.