Home / 15,379.78-23,069.68-11,005.78

Finding the Fourth Proportional to 15,379.78, 23,069.68 and 11,005.78

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Solution

The fourth proportional to 15,379.78, 23,069.68 and 11,005.78 is: 16,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.78 : 23,069.68 = 11,005.78 : x
  2. Step 2: Convert to fraction form
    15,379.78/23,069.68 = 11,005.78/x
  3. Step 3: Cross multiply
    15,379.78x = 23,069.68 × 11,005.78
  4. Step 4: Simplify right side
    15,379.78x = 253,899,822.75
  5. Step 5: Solve for x
    x = 253,899,822.75/15,379.78
  6. Step 6: Final answer
    x = 16,508.68

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Similar ratio
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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.