Home / 17,171.40-23,685.60-11,129.52

Finding the Fourth Proportional to 17,171.40, 23,685.60 and 11,129.52

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Solution

The fourth proportional to 17,171.40, 23,685.60 and 11,129.52 is: 15,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,171.40 : 23,685.60 = 11,129.52 : x
  2. Step 2: Convert to fraction form
    17,171.40/23,685.60 = 11,129.52/x
  3. Step 3: Cross multiply
    17,171.40x = 23,685.60 × 11,129.52
  4. Step 4: Simplify right side
    17,171.40x = 263,609,358.91
  5. Step 5: Solve for x
    x = 263,609,358.91/17,171.40
  6. Step 6: Final answer
    x = 15,351.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.