Home / 26,499.03-39,743.91-7,778.76

Finding the Fourth Proportional to 26,499.03, 39,743.91 and 7,778.76

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Solution

The fourth proportional to 26,499.03, 39,743.91 and 7,778.76 is: 11,666.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,499.03 : 39,743.91 = 7,778.76 : x
  2. Step 2: Convert to fraction form
    26,499.03/39,743.91 = 7,778.76/x
  3. Step 3: Cross multiply
    26,499.03x = 39,743.91 × 7,778.76
  4. Step 4: Simplify right side
    26,499.03x = 309,158,337.35
  5. Step 5: Solve for x
    x = 309,158,337.35/26,499.03
  6. Step 6: Final answer
    x = 11,666.78

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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.