Home / 6,949.80-10,400.40-6,366.60

Finding the Fourth Proportional to 6,949.80, 10,400.40 and 6,366.60

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Solution

The fourth proportional to 6,949.80, 10,400.40 and 6,366.60 is: 9,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949.80 : 10,400.40 = 6,366.60 : x
  2. Step 2: Convert to fraction form
    6,949.80/10,400.40 = 6,366.60/x
  3. Step 3: Cross multiply
    6,949.80x = 10,400.40 × 6,366.60
  4. Step 4: Simplify right side
    6,949.80x = 66,215,186.64
  5. Step 5: Solve for x
    x = 66,215,186.64/6,949.80
  6. Step 6: Final answer
    x = 9,527.64

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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.