Home / 8,988.22-12,404.84-5,451.42

Finding the Fourth Proportional to 8,988.22, 12,404.84 and 5,451.42

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Solution

The fourth proportional to 8,988.22, 12,404.84 and 5,451.42 is: 7,523.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.22 : 12,404.84 = 5,451.42 : x
  2. Step 2: Convert to fraction form
    8,988.22/12,404.84 = 5,451.42/x
  3. Step 3: Cross multiply
    8,988.22x = 12,404.84 × 5,451.42
  4. Step 4: Simplify right side
    8,988.22x = 67,623,992.87
  5. Step 5: Solve for x
    x = 67,623,992.87/8,988.22
  6. Step 6: Final answer
    x = 7,523.62

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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.