Home / 8,110.88-12,167.57-3,430.90

Finding the Fourth Proportional to 8,110.88, 12,167.57 and 3,430.90

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Solution

The fourth proportional to 8,110.88, 12,167.57 and 3,430.90 is: 5,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.88 : 12,167.57 = 3,430.90 : x
  2. Step 2: Convert to fraction form
    8,110.88/12,167.57 = 3,430.90/x
  3. Step 3: Cross multiply
    8,110.88x = 12,167.57 × 3,430.90
  4. Step 4: Simplify right side
    8,110.88x = 41,745,715.91
  5. Step 5: Solve for x
    x = 41,745,715.91/8,110.88
  6. Step 6: Final answer
    x = 5,146.88

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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.