Home / 8,114.76-12,167.28-2,921.85

Finding the Fourth Proportional to 8,114.76, 12,167.28 and 2,921.85

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Solution

The fourth proportional to 8,114.76, 12,167.28 and 2,921.85 is: 4,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.76 : 12,167.28 = 2,921.85 : x
  2. Step 2: Convert to fraction form
    8,114.76/12,167.28 = 2,921.85/x
  3. Step 3: Cross multiply
    8,114.76x = 12,167.28 × 2,921.85
  4. Step 4: Simplify right side
    8,114.76x = 35,550,967.07
  5. Step 5: Solve for x
    x = 35,550,967.07/8,114.76
  6. Step 6: Final answer
    x = 4,381.03

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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.