Home / 8,969.88-13,456.87-2,730.78

Finding the Fourth Proportional to 8,969.88, 13,456.87 and 2,730.78

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Solution

The fourth proportional to 8,969.88, 13,456.87 and 2,730.78 is: 4,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.88 : 13,456.87 = 2,730.78 : x
  2. Step 2: Convert to fraction form
    8,969.88/13,456.87 = 2,730.78/x
  3. Step 3: Cross multiply
    8,969.88x = 13,456.87 × 2,730.78
  4. Step 4: Simplify right side
    8,969.88x = 36,747,751.46
  5. Step 5: Solve for x
    x = 36,747,751.46/8,969.88
  6. Step 6: Final answer
    x = 4,096.79

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1.5x scale

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.