Home / 11,655.87-17,479.69-3,758.07

Finding the Fourth Proportional to 11,655.87, 17,479.69 and 3,758.07

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Solution

The fourth proportional to 11,655.87, 17,479.69 and 3,758.07 is: 5,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.87 : 17,479.69 = 3,758.07 : x
  2. Step 2: Convert to fraction form
    11,655.87/17,479.69 = 3,758.07/x
  3. Step 3: Cross multiply
    11,655.87x = 17,479.69 × 3,758.07
  4. Step 4: Simplify right side
    11,655.87x = 65,689,898.60
  5. Step 5: Solve for x
    x = 65,689,898.60/11,655.87
  6. Step 6: Final answer
    x = 5,635.78

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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.