Home / 15,680.61-23,520.78-3,993.66

Finding the Fourth Proportional to 15,680.61, 23,520.78 and 3,993.66

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Solution

The fourth proportional to 15,680.61, 23,520.78 and 3,993.66 is: 5,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.61 : 23,520.78 = 3,993.66 : x
  2. Step 2: Convert to fraction form
    15,680.61/23,520.78 = 3,993.66/x
  3. Step 3: Cross multiply
    15,680.61x = 23,520.78 × 3,993.66
  4. Step 4: Simplify right side
    15,680.61x = 93,933,998.25
  5. Step 5: Solve for x
    x = 93,933,998.25/15,680.61
  6. Step 6: Final answer
    x = 5,990.46

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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.