Home / 8,322.09-12,478.42-3,385.95

Finding the Fourth Proportional to 8,322.09, 12,478.42 and 3,385.95

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Solution

The fourth proportional to 8,322.09, 12,478.42 and 3,385.95 is: 5,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.09 : 12,478.42 = 3,385.95 : x
  2. Step 2: Convert to fraction form
    8,322.09/12,478.42 = 3,385.95/x
  3. Step 3: Cross multiply
    8,322.09x = 12,478.42 × 3,385.95
  4. Step 4: Simplify right side
    8,322.09x = 42,251,306.20
  5. Step 5: Solve for x
    x = 42,251,306.20/8,322.09
  6. Step 6: Final answer
    x = 5,077.01

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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.