Home / 17,799.20-26,662.40-9,991.52

Finding the Fourth Proportional to 17,799.20, 26,662.40 and 9,991.52

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Solution

The fourth proportional to 17,799.20, 26,662.40 and 9,991.52 is: 14,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,799.20 : 26,662.40 = 9,991.52 : x
  2. Step 2: Convert to fraction form
    17,799.20/26,662.40 = 9,991.52/x
  3. Step 3: Cross multiply
    17,799.20x = 26,662.40 × 9,991.52
  4. Step 4: Simplify right side
    17,799.20x = 266,397,902.85
  5. Step 5: Solve for x
    x = 266,397,902.85/17,799.20
  6. Step 6: Final answer
    x = 14,966.85

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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.