Home / 11,478.87-17,177.25-8,996.64

Finding the Fourth Proportional to 11,478.87, 17,177.25 and 8,996.64

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Solution

The fourth proportional to 11,478.87, 17,177.25 and 8,996.64 is: 13,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.87 : 17,177.25 = 8,996.64 : x
  2. Step 2: Convert to fraction form
    11,478.87/17,177.25 = 8,996.64/x
  3. Step 3: Cross multiply
    11,478.87x = 17,177.25 × 8,996.64
  4. Step 4: Simplify right side
    11,478.87x = 154,537,534.44
  5. Step 5: Solve for x
    x = 154,537,534.44/11,478.87
  6. Step 6: Final answer
    x = 13,462.78

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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.