Home / 11,144.55-15,379.26-6,108.78

Finding the Fourth Proportional to 11,144.55, 15,379.26 and 6,108.78

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Solution

The fourth proportional to 11,144.55, 15,379.26 and 6,108.78 is: 8,430.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.55 : 15,379.26 = 6,108.78 : x
  2. Step 2: Convert to fraction form
    11,144.55/15,379.26 = 6,108.78/x
  3. Step 3: Cross multiply
    11,144.55x = 15,379.26 × 6,108.78
  4. Step 4: Simplify right side
    11,144.55x = 93,948,515.90
  5. Step 5: Solve for x
    x = 93,948,515.90/11,144.55
  6. Step 6: Final answer
    x = 8,430.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.