Home / 7,276.80-10,922.84-6,449.16

Finding the Fourth Proportional to 7,276.80, 10,922.84 and 6,449.16

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Solution

The fourth proportional to 7,276.80, 10,922.84 and 6,449.16 is: 9,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.80 : 10,922.84 = 6,449.16 : x
  2. Step 2: Convert to fraction form
    7,276.80/10,922.84 = 6,449.16/x
  3. Step 3: Cross multiply
    7,276.80x = 10,922.84 × 6,449.16
  4. Step 4: Simplify right side
    7,276.80x = 70,443,110.57
  5. Step 5: Solve for x
    x = 70,443,110.57/7,276.80
  6. Step 6: Final answer
    x = 9,680.51

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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.