Home / 10,949.87-15,105.12-6,964.07

Finding the Fourth Proportional to 10,949.87, 15,105.12 and 6,964.07

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Solution

The fourth proportional to 10,949.87, 15,105.12 and 6,964.07 is: 9,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.87 : 15,105.12 = 6,964.07 : x
  2. Step 2: Convert to fraction form
    10,949.87/15,105.12 = 6,964.07/x
  3. Step 3: Cross multiply
    10,949.87x = 15,105.12 × 6,964.07
  4. Step 4: Simplify right side
    10,949.87x = 105,193,037.51
  5. Step 5: Solve for x
    x = 105,193,037.51/10,949.87
  6. Step 6: Final answer
    x = 9,606.79

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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.