Home / 18,358.62-25,335.27-9,975.66

Finding the Fourth Proportional to 18,358.62, 25,335.27 and 9,975.66

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Solution

The fourth proportional to 18,358.62, 25,335.27 and 9,975.66 is: 13,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.62 : 25,335.27 = 9,975.66 : x
  2. Step 2: Convert to fraction form
    18,358.62/25,335.27 = 9,975.66/x
  3. Step 3: Cross multiply
    18,358.62x = 25,335.27 × 9,975.66
  4. Step 4: Simplify right side
    18,358.62x = 252,736,039.53
  5. Step 5: Solve for x
    x = 252,736,039.53/18,358.62
  6. Step 6: Final answer
    x = 13,766.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.