Home / 13,763.77-20,648.60-4,275.88

Finding the Fourth Proportional to 13,763.77, 20,648.60 and 4,275.88

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Solution

The fourth proportional to 13,763.77, 20,648.60 and 4,275.88 is: 6,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.77 : 20,648.60 = 4,275.88 : x
  2. Step 2: Convert to fraction form
    13,763.77/20,648.60 = 4,275.88/x
  3. Step 3: Cross multiply
    13,763.77x = 20,648.60 × 4,275.88
  4. Step 4: Simplify right side
    13,763.77x = 88,290,935.77
  5. Step 5: Solve for x
    x = 88,290,935.77/13,763.77
  6. Step 6: Final answer
    x = 6,414.73

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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.