Home / 8,997.28-12,421.27-6,316.73

Finding the Fourth Proportional to 8,997.28, 12,421.27 and 6,316.73

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Solution

The fourth proportional to 8,997.28, 12,421.27 and 6,316.73 is: 8,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.28 : 12,421.27 = 6,316.73 : x
  2. Step 2: Convert to fraction form
    8,997.28/12,421.27 = 6,316.73/x
  3. Step 3: Cross multiply
    8,997.28x = 12,421.27 × 6,316.73
  4. Step 4: Simplify right side
    8,997.28x = 78,461,808.85
  5. Step 5: Solve for x
    x = 78,461,808.85/8,997.28
  6. Step 6: Final answer
    x = 8,720.61

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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.