Home / 8,457.24-12,685.57-2,217.20

Finding the Fourth Proportional to 8,457.24, 12,685.57 and 2,217.20

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Solution

The fourth proportional to 8,457.24, 12,685.57 and 2,217.20 is: 3,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.24 : 12,685.57 = 2,217.20 : x
  2. Step 2: Convert to fraction form
    8,457.24/12,685.57 = 2,217.20/x
  3. Step 3: Cross multiply
    8,457.24x = 12,685.57 × 2,217.20
  4. Step 4: Simplify right side
    8,457.24x = 28,126,471.97
  5. Step 5: Solve for x
    x = 28,126,471.97/8,457.24
  6. Step 6: Final answer
    x = 3,325.73

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1.5x scale

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.