Home / 8,986.20-13,479.30-4,061.40

Finding the Fourth Proportional to 8,986.20, 13,479.30 and 4,061.40

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Solution

The fourth proportional to 8,986.20, 13,479.30 and 4,061.40 is: 6,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.20 : 13,479.30 = 4,061.40 : x
  2. Step 2: Convert to fraction form
    8,986.20/13,479.30 = 4,061.40/x
  3. Step 3: Cross multiply
    8,986.20x = 13,479.30 × 4,061.40
  4. Step 4: Simplify right side
    8,986.20x = 54,744,829.02
  5. Step 5: Solve for x
    x = 54,744,829.02/8,986.20
  6. Step 6: Final answer
    x = 6,092.10

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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.