Home / 17,512.40-26,245.80-7,112

Finding the Fourth Proportional to 17,512.40, 26,245.80 and 7,112

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Solution

The fourth proportional to 17,512.40, 26,245.80 and 7,112 is: 10,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,512.40 : 26,245.80 = 7,112 : x
  2. Step 2: Convert to fraction form
    17,512.40/26,245.80 = 7,112/x
  3. Step 3: Cross multiply
    17,512.40x = 26,245.80 × 7,112
  4. Step 4: Simplify right side
    17,512.40x = 186,660,129.60
  5. Step 5: Solve for x
    x = 186,660,129.60/17,512.40
  6. Step 6: Final answer
    x = 10,658.74

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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.