Home / 7,766.76-10,718-4,229.96

Finding the Fourth Proportional to 7,766.76, 10,718 and 4,229.96

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Solution

The fourth proportional to 7,766.76, 10,718 and 4,229.96 is: 5,837.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.76 : 10,718 = 4,229.96 : x
  2. Step 2: Convert to fraction form
    7,766.76/10,718 = 4,229.96/x
  3. Step 3: Cross multiply
    7,766.76x = 10,718 × 4,229.96
  4. Step 4: Simplify right side
    7,766.76x = 45,336,711.28
  5. Step 5: Solve for x
    x = 45,336,711.28/7,766.76
  6. Step 6: Final answer
    x = 5,837.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.