Home / 10,268.28-15,388.05-7,767.36

Finding the Fourth Proportional to 10,268.28, 15,388.05 and 7,767.36

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Solution

The fourth proportional to 10,268.28, 15,388.05 and 7,767.36 is: 11,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.28 : 15,388.05 = 7,767.36 : x
  2. Step 2: Convert to fraction form
    10,268.28/15,388.05 = 7,767.36/x
  3. Step 3: Cross multiply
    10,268.28x = 15,388.05 × 7,767.36
  4. Step 4: Simplify right side
    10,268.28x = 119,524,524.05
  5. Step 5: Solve for x
    x = 119,524,524.05/10,268.28
  6. Step 6: Final answer
    x = 11,640.17

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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.