Home / 13,672.31-20,512.14-4,312.69

Finding the Fourth Proportional to 13,672.31, 20,512.14 and 4,312.69

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Solution

The fourth proportional to 13,672.31, 20,512.14 and 4,312.69 is: 6,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.31 : 20,512.14 = 4,312.69 : x
  2. Step 2: Convert to fraction form
    13,672.31/20,512.14 = 4,312.69/x
  3. Step 3: Cross multiply
    13,672.31x = 20,512.14 × 4,312.69
  4. Step 4: Simplify right side
    13,672.31x = 88,462,433.60
  5. Step 5: Solve for x
    x = 88,462,433.60/13,672.31
  6. Step 6: Final answer
    x = 6,470.19

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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.