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Finding the Fourth Proportional to 8,344.56, 11,514.96 and 4,986.30

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Solution

The fourth proportional to 8,344.56, 11,514.96 and 4,986.30 is: 6,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.56 : 11,514.96 = 4,986.30 : x
  2. Step 2: Convert to fraction form
    8,344.56/11,514.96 = 4,986.30/x
  3. Step 3: Cross multiply
    8,344.56x = 11,514.96 × 4,986.30
  4. Step 4: Simplify right side
    8,344.56x = 57,417,045.05
  5. Step 5: Solve for x
    x = 57,417,045.05/8,344.56
  6. Step 6: Final answer
    x = 6,880.78

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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.