Home / 8,313.80-12,470.69-3,382.11

Finding the Fourth Proportional to 8,313.80, 12,470.69 and 3,382.11

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Solution

The fourth proportional to 8,313.80, 12,470.69 and 3,382.11 is: 5,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.80 : 12,470.69 = 3,382.11 : x
  2. Step 2: Convert to fraction form
    8,313.80/12,470.69 = 3,382.11/x
  3. Step 3: Cross multiply
    8,313.80x = 12,470.69 × 3,382.11
  4. Step 4: Simplify right side
    8,313.80x = 42,177,253.81
  5. Step 5: Solve for x
    x = 42,177,253.81/8,313.80
  6. Step 6: Final answer
    x = 5,073.17

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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.