Home / 8,422.53-12,626.94-3,154.59

Finding the Fourth Proportional to 8,422.53, 12,626.94 and 3,154.59

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Solution

The fourth proportional to 8,422.53, 12,626.94 and 3,154.59 is: 4,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.53 : 12,626.94 = 3,154.59 : x
  2. Step 2: Convert to fraction form
    8,422.53/12,626.94 = 3,154.59/x
  3. Step 3: Cross multiply
    8,422.53x = 12,626.94 × 3,154.59
  4. Step 4: Simplify right side
    8,422.53x = 39,832,818.65
  5. Step 5: Solve for x
    x = 39,832,818.65/8,422.53
  6. Step 6: Final answer
    x = 4,729.32

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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.