Home / 26,658.72-39,961.32-9,116.55

Finding the Fourth Proportional to 26,658.72, 39,961.32 and 9,116.55

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Solution

The fourth proportional to 26,658.72, 39,961.32 and 9,116.55 is: 13,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.72 : 39,961.32 = 9,116.55 : x
  2. Step 2: Convert to fraction form
    26,658.72/39,961.32 = 9,116.55/x
  3. Step 3: Cross multiply
    26,658.72x = 39,961.32 × 9,116.55
  4. Step 4: Simplify right side
    26,658.72x = 364,309,371.85
  5. Step 5: Solve for x
    x = 364,309,371.85/26,658.72
  6. Step 6: Final answer
    x = 13,665.67

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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.