Home / 11,747.80-17,589.30-9,155.80

Finding the Fourth Proportional to 11,747.80, 17,589.30 and 9,155.80

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Solution

The fourth proportional to 11,747.80, 17,589.30 and 9,155.80 is: 13,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.80 : 17,589.30 = 9,155.80 : x
  2. Step 2: Convert to fraction form
    11,747.80/17,589.30 = 9,155.80/x
  3. Step 3: Cross multiply
    11,747.80x = 17,589.30 × 9,155.80
  4. Step 4: Simplify right side
    11,747.80x = 161,044,112.94
  5. Step 5: Solve for x
    x = 161,044,112.94/11,747.80
  6. Step 6: Final answer
    x = 13,708.45

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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.