Home / 11,489.99-17,231.65-5,246.69

Finding the Fourth Proportional to 11,489.99, 17,231.65 and 5,246.69

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Solution

The fourth proportional to 11,489.99, 17,231.65 and 5,246.69 is: 7,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.99 : 17,231.65 = 5,246.69 : x
  2. Step 2: Convert to fraction form
    11,489.99/17,231.65 = 5,246.69/x
  3. Step 3: Cross multiply
    11,489.99x = 17,231.65 × 5,246.69
  4. Step 4: Simplify right side
    11,489.99x = 90,409,026.46
  5. Step 5: Solve for x
    x = 90,409,026.46/11,489.99
  6. Step 6: Final answer
    x = 7,868.51

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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.