Home / 11,478.65-17,217.96-3,158.71

Finding the Fourth Proportional to 11,478.65, 17,217.96 and 3,158.71

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Solution

The fourth proportional to 11,478.65, 17,217.96 and 3,158.71 is: 4,738.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.65 : 17,217.96 = 3,158.71 : x
  2. Step 2: Convert to fraction form
    11,478.65/17,217.96 = 3,158.71/x
  3. Step 3: Cross multiply
    11,478.65x = 17,217.96 × 3,158.71
  4. Step 4: Simplify right side
    11,478.65x = 54,386,487.54
  5. Step 5: Solve for x
    x = 54,386,487.54/11,478.65
  6. Step 6: Final answer
    x = 4,738.06

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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.