Home / 8,418.78-11,617.96-4,884.08

Finding the Fourth Proportional to 8,418.78, 11,617.96 and 4,884.08

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Solution

The fourth proportional to 8,418.78, 11,617.96 and 4,884.08 is: 6,740.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.78 : 11,617.96 = 4,884.08 : x
  2. Step 2: Convert to fraction form
    8,418.78/11,617.96 = 4,884.08/x
  3. Step 3: Cross multiply
    8,418.78x = 11,617.96 × 4,884.08
  4. Step 4: Simplify right side
    8,418.78x = 56,743,046.08
  5. Step 5: Solve for x
    x = 56,743,046.08/8,418.78
  6. Step 6: Final answer
    x = 6,740.06

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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.