Home / 11,479.67-17,217.88-3,687.47

Finding the Fourth Proportional to 11,479.67, 17,217.88 and 3,687.47

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Solution

The fourth proportional to 11,479.67, 17,217.88 and 3,687.47 is: 5,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.67 : 17,217.88 = 3,687.47 : x
  2. Step 2: Convert to fraction form
    11,479.67/17,217.88 = 3,687.47/x
  3. Step 3: Cross multiply
    11,479.67x = 17,217.88 × 3,687.47
  4. Step 4: Simplify right side
    11,479.67x = 63,490,415.96
  5. Step 5: Solve for x
    x = 63,490,415.96/11,479.67
  6. Step 6: Final answer
    x = 5,530.68

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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.