Home / 11,677.72-17,517.12-4,278.64

Finding the Fourth Proportional to 11,677.72, 17,517.12 and 4,278.64

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Solution

The fourth proportional to 11,677.72, 17,517.12 and 4,278.64 is: 6,418.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.72 : 17,517.12 = 4,278.64 : x
  2. Step 2: Convert to fraction form
    11,677.72/17,517.12 = 4,278.64/x
  3. Step 3: Cross multiply
    11,677.72x = 17,517.12 × 4,278.64
  4. Step 4: Simplify right side
    11,677.72x = 74,949,450.32
  5. Step 5: Solve for x
    x = 74,949,450.32/11,677.72
  6. Step 6: Final answer
    x = 6,418.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.