Home / 26,431.85-39,654.15-8,663.85

Finding the Fourth Proportional to 26,431.85, 39,654.15 and 8,663.85

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Solution

The fourth proportional to 26,431.85, 39,654.15 and 8,663.85 is: 12,997.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.85 : 39,654.15 = 8,663.85 : x
  2. Step 2: Convert to fraction form
    26,431.85/39,654.15 = 8,663.85/x
  3. Step 3: Cross multiply
    26,431.85x = 39,654.15 × 8,663.85
  4. Step 4: Simplify right side
    26,431.85x = 343,557,607.48
  5. Step 5: Solve for x
    x = 343,557,607.48/26,431.85
  6. Step 6: Final answer
    x = 12,997.87

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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.