Home / 11,416.20-15,755.49-6,700.38

Finding the Fourth Proportional to 11,416.20, 15,755.49 and 6,700.38

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Solution

The fourth proportional to 11,416.20, 15,755.49 and 6,700.38 is: 9,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.20 : 15,755.49 = 6,700.38 : x
  2. Step 2: Convert to fraction form
    11,416.20/15,755.49 = 6,700.38/x
  3. Step 3: Cross multiply
    11,416.20x = 15,755.49 × 6,700.38
  4. Step 4: Simplify right side
    11,416.20x = 105,567,770.09
  5. Step 5: Solve for x
    x = 105,567,770.09/11,416.20
  6. Step 6: Final answer
    x = 9,247.19

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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.