Home / 13,146.26-18,141.17-7,176.78

Finding the Fourth Proportional to 13,146.26, 18,141.17 and 7,176.78

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Solution

The fourth proportional to 13,146.26, 18,141.17 and 7,176.78 is: 9,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.26 : 18,141.17 = 7,176.78 : x
  2. Step 2: Convert to fraction form
    13,146.26/18,141.17 = 7,176.78/x
  3. Step 3: Cross multiply
    13,146.26x = 18,141.17 × 7,176.78
  4. Step 4: Simplify right side
    13,146.26x = 130,195,099.13
  5. Step 5: Solve for x
    x = 130,195,099.13/13,146.26
  6. Step 6: Final answer
    x = 9,903.58

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