Home / 9,023.22-12,451.68-4,989.78

Finding the Fourth Proportional to 9,023.22, 12,451.68 and 4,989.78

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Solution

The fourth proportional to 9,023.22, 12,451.68 and 4,989.78 is: 6,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,023.22 : 12,451.68 = 4,989.78 : x
  2. Step 2: Convert to fraction form
    9,023.22/12,451.68 = 4,989.78/x
  3. Step 3: Cross multiply
    9,023.22x = 12,451.68 × 4,989.78
  4. Step 4: Simplify right side
    9,023.22x = 62,131,185.88
  5. Step 5: Solve for x
    x = 62,131,185.88/9,023.22
  6. Step 6: Final answer
    x = 6,885.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.