Home / 11,479.79-17,218.07-3,687.59

Finding the Fourth Proportional to 11,479.79, 17,218.07 and 3,687.59

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Solution

The fourth proportional to 11,479.79, 17,218.07 and 3,687.59 is: 5,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.79 : 17,218.07 = 3,687.59 : x
  2. Step 2: Convert to fraction form
    11,479.79/17,218.07 = 3,687.59/x
  3. Step 3: Cross multiply
    11,479.79x = 17,218.07 × 3,687.59
  4. Step 4: Simplify right side
    11,479.79x = 63,493,221.19
  5. Step 5: Solve for x
    x = 63,493,221.19/11,479.79
  6. Step 6: Final answer
    x = 5,530.87

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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.