Home / 8,457.71-12,686.97-2,217.88

Finding the Fourth Proportional to 8,457.71, 12,686.97 and 2,217.88

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Solution

The fourth proportional to 8,457.71, 12,686.97 and 2,217.88 is: 3,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.71 : 12,686.97 = 2,217.88 : x
  2. Step 2: Convert to fraction form
    8,457.71/12,686.97 = 2,217.88/x
  3. Step 3: Cross multiply
    8,457.71x = 12,686.97 × 2,217.88
  4. Step 4: Simplify right side
    8,457.71x = 28,138,113.59
  5. Step 5: Solve for x
    x = 28,138,113.59/8,457.71
  6. Step 6: Final answer
    x = 3,326.92

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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.