Home / 11,579.40-17,344.80-9,102.42

Finding the Fourth Proportional to 11,579.40, 17,344.80 and 9,102.42

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Solution

The fourth proportional to 11,579.40, 17,344.80 and 9,102.42 is: 13,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.40 : 17,344.80 = 9,102.42 : x
  2. Step 2: Convert to fraction form
    11,579.40/17,344.80 = 9,102.42/x
  3. Step 3: Cross multiply
    11,579.40x = 17,344.80 × 9,102.42
  4. Step 4: Simplify right side
    11,579.40x = 157,879,654.42
  5. Step 5: Solve for x
    x = 157,879,654.42/11,579.40
  6. Step 6: Final answer
    x = 13,634.53

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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.