Home / 13,717.31-20,573.33-6,690.22

Finding the Fourth Proportional to 13,717.31, 20,573.33 and 6,690.22

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Solution

The fourth proportional to 13,717.31, 20,573.33 and 6,690.22 is: 10,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.31 : 20,573.33 = 6,690.22 : x
  2. Step 2: Convert to fraction form
    13,717.31/20,573.33 = 6,690.22/x
  3. Step 3: Cross multiply
    13,717.31x = 20,573.33 × 6,690.22
  4. Step 4: Simplify right side
    13,717.31x = 137,640,018.95
  5. Step 5: Solve for x
    x = 137,640,018.95/13,717.31
  6. Step 6: Final answer
    x = 10,034.04

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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.