Home / 17,112.90-25,672.05-5,427.30

Finding the Fourth Proportional to 17,112.90, 25,672.05 and 5,427.30

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Solution

The fourth proportional to 17,112.90, 25,672.05 and 5,427.30 is: 8,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.90 : 25,672.05 = 5,427.30 : x
  2. Step 2: Convert to fraction form
    17,112.90/25,672.05 = 5,427.30/x
  3. Step 3: Cross multiply
    17,112.90x = 25,672.05 × 5,427.30
  4. Step 4: Simplify right side
    17,112.90x = 139,329,916.97
  5. Step 5: Solve for x
    x = 139,329,916.97/17,112.90
  6. Step 6: Final answer
    x = 8,141.81

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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.