Home / 8,321.04-12,482.28-3,391.02

Finding the Fourth Proportional to 8,321.04, 12,482.28 and 3,391.02

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Solution

The fourth proportional to 8,321.04, 12,482.28 and 3,391.02 is: 5,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.04 : 12,482.28 = 3,391.02 : x
  2. Step 2: Convert to fraction form
    8,321.04/12,482.28 = 3,391.02/x
  3. Step 3: Cross multiply
    8,321.04x = 12,482.28 × 3,391.02
  4. Step 4: Simplify right side
    8,321.04x = 42,327,661.13
  5. Step 5: Solve for x
    x = 42,327,661.13/8,321.04
  6. Step 6: Final answer
    x = 5,086.82

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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.