Home / 8,380.31-12,570.08-2,456.96

Finding the Fourth Proportional to 8,380.31, 12,570.08 and 2,456.96

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Solution

The fourth proportional to 8,380.31, 12,570.08 and 2,456.96 is: 3,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.31 : 12,570.08 = 2,456.96 : x
  2. Step 2: Convert to fraction form
    8,380.31/12,570.08 = 2,456.96/x
  3. Step 3: Cross multiply
    8,380.31x = 12,570.08 × 2,456.96
  4. Step 4: Simplify right side
    8,380.31x = 30,884,159.95
  5. Step 5: Solve for x
    x = 30,884,159.95/8,380.31
  6. Step 6: Final answer
    x = 3,685.32

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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.