Home / 8,321.02-12,482.67-3,876.39

Finding the Fourth Proportional to 8,321.02, 12,482.67 and 3,876.39

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Solution

The fourth proportional to 8,321.02, 12,482.67 and 3,876.39 is: 5,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.02 : 12,482.67 = 3,876.39 : x
  2. Step 2: Convert to fraction form
    8,321.02/12,482.67 = 3,876.39/x
  3. Step 3: Cross multiply
    8,321.02x = 12,482.67 × 3,876.39
  4. Step 4: Simplify right side
    8,321.02x = 48,387,748.01
  5. Step 5: Solve for x
    x = 48,387,748.01/8,321.02
  6. Step 6: Final answer
    x = 5,815.12

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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.