Home / 11,452.29-17,156.88-8,979.60

Finding the Fourth Proportional to 11,452.29, 17,156.88 and 8,979.60

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Solution

The fourth proportional to 11,452.29, 17,156.88 and 8,979.60 is: 13,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.29 : 17,156.88 = 8,979.60 : x
  2. Step 2: Convert to fraction form
    11,452.29/17,156.88 = 8,979.60/x
  3. Step 3: Cross multiply
    11,452.29x = 17,156.88 × 8,979.60
  4. Step 4: Simplify right side
    11,452.29x = 154,061,919.65
  5. Step 5: Solve for x
    x = 154,061,919.65/11,452.29
  6. Step 6: Final answer
    x = 13,452.50

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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.