Home / 8,126.67-12,191.71-4,618.30

Finding the Fourth Proportional to 8,126.67, 12,191.71 and 4,618.30

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Solution

The fourth proportional to 8,126.67, 12,191.71 and 4,618.30 is: 6,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.67 : 12,191.71 = 4,618.30 : x
  2. Step 2: Convert to fraction form
    8,126.67/12,191.71 = 4,618.30/x
  3. Step 3: Cross multiply
    8,126.67x = 12,191.71 × 4,618.30
  4. Step 4: Simplify right side
    8,126.67x = 56,304,974.29
  5. Step 5: Solve for x
    x = 56,304,974.29/8,126.67
  6. Step 6: Final answer
    x = 6,928.42

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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.