Home / 11,701.98-17,553.78-3,909.78

Finding the Fourth Proportional to 11,701.98, 17,553.78 and 3,909.78

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Solution

The fourth proportional to 11,701.98, 17,553.78 and 3,909.78 is: 5,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.98 : 17,553.78 = 3,909.78 : x
  2. Step 2: Convert to fraction form
    11,701.98/17,553.78 = 3,909.78/x
  3. Step 3: Cross multiply
    11,701.98x = 17,553.78 × 3,909.78
  4. Step 4: Simplify right side
    11,701.98x = 68,631,417.97
  5. Step 5: Solve for x
    x = 68,631,417.97/11,701.98
  6. Step 6: Final answer
    x = 5,864.94

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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.