Home / 11,425.70-17,131.62-7,472.18

Finding the Fourth Proportional to 11,425.70, 17,131.62 and 7,472.18

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Solution

The fourth proportional to 11,425.70, 17,131.62 and 7,472.18 is: 11,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.70 : 17,131.62 = 7,472.18 : x
  2. Step 2: Convert to fraction form
    11,425.70/17,131.62 = 7,472.18/x
  3. Step 3: Cross multiply
    11,425.70x = 17,131.62 × 7,472.18
  4. Step 4: Simplify right side
    11,425.70x = 128,010,619.18
  5. Step 5: Solve for x
    x = 128,010,619.18/11,425.70
  6. Step 6: Final answer
    x = 11,203.75

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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.