Home / 8,818.56-13,223.66-5,121.95

Finding the Fourth Proportional to 8,818.56, 13,223.66 and 5,121.95

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Solution

The fourth proportional to 8,818.56, 13,223.66 and 5,121.95 is: 7,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.56 : 13,223.66 = 5,121.95 : x
  2. Step 2: Convert to fraction form
    8,818.56/13,223.66 = 5,121.95/x
  3. Step 3: Cross multiply
    8,818.56x = 13,223.66 × 5,121.95
  4. Step 4: Simplify right side
    8,818.56x = 67,730,833.61
  5. Step 5: Solve for x
    x = 67,730,833.61/8,818.56
  6. Step 6: Final answer
    x = 7,680.49

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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.