Home / 8,261.04-12,387.90-3,876.12

Finding the Fourth Proportional to 8,261.04, 12,387.90 and 3,876.12

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Solution

The fourth proportional to 8,261.04, 12,387.90 and 3,876.12 is: 5,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.04 : 12,387.90 = 3,876.12 : x
  2. Step 2: Convert to fraction form
    8,261.04/12,387.90 = 3,876.12/x
  3. Step 3: Cross multiply
    8,261.04x = 12,387.90 × 3,876.12
  4. Step 4: Simplify right side
    8,261.04x = 48,016,986.95
  5. Step 5: Solve for x
    x = 48,016,986.95/8,261.04
  6. Step 6: Final answer
    x = 5,812.46

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1.5x scale

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.