Home / 13,977.66-20,959.86-5,086.70

Finding the Fourth Proportional to 13,977.66, 20,959.86 and 5,086.70

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Solution

The fourth proportional to 13,977.66, 20,959.86 and 5,086.70 is: 7,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.66 : 20,959.86 = 5,086.70 : x
  2. Step 2: Convert to fraction form
    13,977.66/20,959.86 = 5,086.70/x
  3. Step 3: Cross multiply
    13,977.66x = 20,959.86 × 5,086.70
  4. Step 4: Simplify right side
    13,977.66x = 106,616,512.74
  5. Step 5: Solve for x
    x = 106,616,512.74/13,977.66
  6. Step 6: Final answer
    x = 7,627.63

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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.