Home / 26,638.05-39,963.50-9,998.25

Finding the Fourth Proportional to 26,638.05, 39,963.50 and 9,998.25

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Solution

The fourth proportional to 26,638.05, 39,963.50 and 9,998.25 is: 14,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,638.05 : 39,963.50 = 9,998.25 : x
  2. Step 2: Convert to fraction form
    26,638.05/39,963.50 = 9,998.25/x
  3. Step 3: Cross multiply
    26,638.05x = 39,963.50 × 9,998.25
  4. Step 4: Simplify right side
    26,638.05x = 399,565,013.88
  5. Step 5: Solve for x
    x = 399,565,013.88/26,638.05
  6. Step 6: Final answer
    x = 14,999.78

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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.