Home / 11,209.92-15,469.76-6,174.72

Finding the Fourth Proportional to 11,209.92, 15,469.76 and 6,174.72

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Solution

The fourth proportional to 11,209.92, 15,469.76 and 6,174.72 is: 8,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.92 : 15,469.76 = 6,174.72 : x
  2. Step 2: Convert to fraction form
    11,209.92/15,469.76 = 6,174.72/x
  3. Step 3: Cross multiply
    11,209.92x = 15,469.76 × 6,174.72
  4. Step 4: Simplify right side
    11,209.92x = 95,521,436.47
  5. Step 5: Solve for x
    x = 95,521,436.47/11,209.92
  6. Step 6: Final answer
    x = 8,521.15

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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.