Home / 15,778.72-23,665.68-9,917.44

Finding the Fourth Proportional to 15,778.72, 23,665.68 and 9,917.44

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Solution

The fourth proportional to 15,778.72, 23,665.68 and 9,917.44 is: 14,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778.72 : 23,665.68 = 9,917.44 : x
  2. Step 2: Convert to fraction form
    15,778.72/23,665.68 = 9,917.44/x
  3. Step 3: Cross multiply
    15,778.72x = 23,665.68 × 9,917.44
  4. Step 4: Simplify right side
    15,778.72x = 234,702,961.46
  5. Step 5: Solve for x
    x = 234,702,961.46/15,778.72
  6. Step 6: Final answer
    x = 14,874.65

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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.