Home / 11,329.54-15,640.45-7,082.96

Finding the Fourth Proportional to 11,329.54, 15,640.45 and 7,082.96

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Solution

The fourth proportional to 11,329.54, 15,640.45 and 7,082.96 is: 9,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.54 : 15,640.45 = 7,082.96 : x
  2. Step 2: Convert to fraction form
    11,329.54/15,640.45 = 7,082.96/x
  3. Step 3: Cross multiply
    11,329.54x = 15,640.45 × 7,082.96
  4. Step 4: Simplify right side
    11,329.54x = 110,780,681.73
  5. Step 5: Solve for x
    x = 110,780,681.73/11,329.54
  6. Step 6: Final answer
    x = 9,778.04

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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.