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Finding the Fourth Proportional to 9,604.71, 13,249.79 and 6,418.79

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Solution

The fourth proportional to 9,604.71, 13,249.79 and 6,418.79 is: 8,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,604.71 : 13,249.79 = 6,418.79 : x
  2. Step 2: Convert to fraction form
    9,604.71/13,249.79 = 6,418.79/x
  3. Step 3: Cross multiply
    9,604.71x = 13,249.79 × 6,418.79
  4. Step 4: Simplify right side
    9,604.71x = 85,047,619.55
  5. Step 5: Solve for x
    x = 85,047,619.55/9,604.71
  6. Step 6: Final answer
    x = 8,854.78

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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.