Home / 11,478.86-17,217.68-3,687.06

Finding the Fourth Proportional to 11,478.86, 17,217.68 and 3,687.06

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Solution

The fourth proportional to 11,478.86, 17,217.68 and 3,687.06 is: 5,530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.86 : 17,217.68 = 3,687.06 : x
  2. Step 2: Convert to fraction form
    11,478.86/17,217.68 = 3,687.06/x
  3. Step 3: Cross multiply
    11,478.86x = 17,217.68 × 3,687.06
  4. Step 4: Simplify right side
    11,478.86x = 63,482,600.79
  5. Step 5: Solve for x
    x = 63,482,600.79/11,478.86
  6. Step 6: Final answer
    x = 5,530.39

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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.