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Finding the Fourth Proportional to 26,406.98, 39,610.43 and 8,889.11

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Solution

The fourth proportional to 26,406.98, 39,610.43 and 8,889.11 is: 13,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,406.98 : 39,610.43 = 8,889.11 : x
  2. Step 2: Convert to fraction form
    26,406.98/39,610.43 = 8,889.11/x
  3. Step 3: Cross multiply
    26,406.98x = 39,610.43 × 8,889.11
  4. Step 4: Simplify right side
    26,406.98x = 352,101,408.79
  5. Step 5: Solve for x
    x = 352,101,408.79/26,406.98
  6. Step 6: Final answer
    x = 13,333.65

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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.