Home / 13,819.40-20,726.70-5,049.80

Finding the Fourth Proportional to 13,819.40, 20,726.70 and 5,049.80

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Solution

The fourth proportional to 13,819.40, 20,726.70 and 5,049.80 is: 7,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.40 : 20,726.70 = 5,049.80 : x
  2. Step 2: Convert to fraction form
    13,819.40/20,726.70 = 5,049.80/x
  3. Step 3: Cross multiply
    13,819.40x = 20,726.70 × 5,049.80
  4. Step 4: Simplify right side
    13,819.40x = 104,665,689.66
  5. Step 5: Solve for x
    x = 104,665,689.66/13,819.40
  6. Step 6: Final answer
    x = 7,573.82

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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.