Home / 11,729.40-17,506-10,141.09

Finding the Fourth Proportional to 11,729.40, 17,506 and 10,141.09

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Solution

The fourth proportional to 11,729.40, 17,506 and 10,141.09 is: 15,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.40 : 17,506 = 10,141.09 : x
  2. Step 2: Convert to fraction form
    11,729.40/17,506 = 10,141.09/x
  3. Step 3: Cross multiply
    11,729.40x = 17,506 × 10,141.09
  4. Step 4: Simplify right side
    11,729.40x = 177,529,921.54
  5. Step 5: Solve for x
    x = 177,529,921.54/11,729.40
  6. Step 6: Final answer
    x = 15,135.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.