Home / 7,949.28-10,994.64-6,287.12

Finding the Fourth Proportional to 7,949.28, 10,994.64 and 6,287.12

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Solution

The fourth proportional to 7,949.28, 10,994.64 and 6,287.12 is: 8,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.28 : 10,994.64 = 6,287.12 : x
  2. Step 2: Convert to fraction form
    7,949.28/10,994.64 = 6,287.12/x
  3. Step 3: Cross multiply
    7,949.28x = 10,994.64 × 6,287.12
  4. Step 4: Simplify right side
    7,949.28x = 69,124,621.04
  5. Step 5: Solve for x
    x = 69,124,621.04/7,949.28
  6. Step 6: Final answer
    x = 8,695.71

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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.