Home / 8,417.28-12,626.31-3,222.78

Finding the Fourth Proportional to 8,417.28, 12,626.31 and 3,222.78

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Solution

The fourth proportional to 8,417.28, 12,626.31 and 3,222.78 is: 4,834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.28 : 12,626.31 = 3,222.78 : x
  2. Step 2: Convert to fraction form
    8,417.28/12,626.31 = 3,222.78/x
  3. Step 3: Cross multiply
    8,417.28x = 12,626.31 × 3,222.78
  4. Step 4: Simplify right side
    8,417.28x = 40,691,819.34
  5. Step 5: Solve for x
    x = 40,691,819.34/8,417.28
  6. Step 6: Final answer
    x = 4,834.32

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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.