Home / 13,687.76-20,531.96-4,454.48

Finding the Fourth Proportional to 13,687.76, 20,531.96 and 4,454.48

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Solution

The fourth proportional to 13,687.76, 20,531.96 and 4,454.48 is: 6,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.76 : 20,531.96 = 4,454.48 : x
  2. Step 2: Convert to fraction form
    13,687.76/20,531.96 = 4,454.48/x
  3. Step 3: Cross multiply
    13,687.76x = 20,531.96 × 4,454.48
  4. Step 4: Simplify right side
    13,687.76x = 91,459,205.18
  5. Step 5: Solve for x
    x = 91,459,205.18/13,687.76
  6. Step 6: Final answer
    x = 6,681.82

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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.