Home / 8,418.48-11,617.08-4,691.76

Finding the Fourth Proportional to 8,418.48, 11,617.08 and 4,691.76

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Solution

The fourth proportional to 8,418.48, 11,617.08 and 4,691.76 is: 6,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.48 : 11,617.08 = 4,691.76 : x
  2. Step 2: Convert to fraction form
    8,418.48/11,617.08 = 4,691.76/x
  3. Step 3: Cross multiply
    8,418.48x = 11,617.08 × 4,691.76
  4. Step 4: Simplify right side
    8,418.48x = 54,504,551.26
  5. Step 5: Solve for x
    x = 54,504,551.26/8,418.48
  6. Step 6: Final answer
    x = 6,474.39

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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.