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Finding the Fourth Proportional to 8,245.71, 11,377.87 and 5,013.88

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Solution

The fourth proportional to 8,245.71, 11,377.87 and 5,013.88 is: 6,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.71 : 11,377.87 = 5,013.88 : x
  2. Step 2: Convert to fraction form
    8,245.71/11,377.87 = 5,013.88/x
  3. Step 3: Cross multiply
    8,245.71x = 11,377.87 × 5,013.88
  4. Step 4: Simplify right side
    8,245.71x = 57,047,233.86
  5. Step 5: Solve for x
    x = 57,047,233.86/8,245.71
  6. Step 6: Final answer
    x = 6,918.41

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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.