Home / 8,997.96-12,418.68-6,646.92

Finding the Fourth Proportional to 8,997.96, 12,418.68 and 6,646.92

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Solution

The fourth proportional to 8,997.96, 12,418.68 and 6,646.92 is: 9,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.96 : 12,418.68 = 6,646.92 : x
  2. Step 2: Convert to fraction form
    8,997.96/12,418.68 = 6,646.92/x
  3. Step 3: Cross multiply
    8,997.96x = 12,418.68 × 6,646.92
  4. Step 4: Simplify right side
    8,997.96x = 82,545,972.47
  5. Step 5: Solve for x
    x = 82,545,972.47/8,997.96
  6. Step 6: Final answer
    x = 9,173.85

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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.