Home / 8,110.40-12,141.88-7,332.18

Finding the Fourth Proportional to 8,110.40, 12,141.88 and 7,332.18

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Solution

The fourth proportional to 8,110.40, 12,141.88 and 7,332.18 is: 10,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.40 : 12,141.88 = 7,332.18 : x
  2. Step 2: Convert to fraction form
    8,110.40/12,141.88 = 7,332.18/x
  3. Step 3: Cross multiply
    8,110.40x = 12,141.88 × 7,332.18
  4. Step 4: Simplify right side
    8,110.40x = 89,026,449.70
  5. Step 5: Solve for x
    x = 89,026,449.70/8,110.40
  6. Step 6: Final answer
    x = 10,976.83

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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.