Home / 6,626.12-9,938.98-3,115.28

Finding the Fourth Proportional to 6,626.12, 9,938.98 and 3,115.28

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Solution

The fourth proportional to 6,626.12, 9,938.98 and 3,115.28 is: 4,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.12 : 9,938.98 = 3,115.28 : x
  2. Step 2: Convert to fraction form
    6,626.12/9,938.98 = 3,115.28/x
  3. Step 3: Cross multiply
    6,626.12x = 9,938.98 × 3,115.28
  4. Step 4: Simplify right side
    6,626.12x = 30,962,722.67
  5. Step 5: Solve for x
    x = 30,962,722.67/6,626.12
  6. Step 6: Final answer
    x = 4,672.83

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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.