Home / 11,790.80-17,680.55-5,545.54

Finding the Fourth Proportional to 11,790.80, 17,680.55 and 5,545.54

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Solution

The fourth proportional to 11,790.80, 17,680.55 and 5,545.54 is: 8,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.80 : 17,680.55 = 5,545.54 : x
  2. Step 2: Convert to fraction form
    11,790.80/17,680.55 = 5,545.54/x
  3. Step 3: Cross multiply
    11,790.80x = 17,680.55 × 5,545.54
  4. Step 4: Simplify right side
    11,790.80x = 98,048,191.62
  5. Step 5: Solve for x
    x = 98,048,191.62/11,790.80
  6. Step 6: Final answer
    x = 8,315.65

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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.