Home / 8,743.78-13,116.97-2,818.70

Finding the Fourth Proportional to 8,743.78, 13,116.97 and 2,818.70

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Solution

The fourth proportional to 8,743.78, 13,116.97 and 2,818.70 is: 4,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.78 : 13,116.97 = 2,818.70 : x
  2. Step 2: Convert to fraction form
    8,743.78/13,116.97 = 2,818.70/x
  3. Step 3: Cross multiply
    8,743.78x = 13,116.97 × 2,818.70
  4. Step 4: Simplify right side
    8,743.78x = 36,972,790.47
  5. Step 5: Solve for x
    x = 36,972,790.47/8,743.78
  6. Step 6: Final answer
    x = 4,228.47

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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.