Home / 18,359.15-25,335.60-9,975.65

Finding the Fourth Proportional to 18,359.15, 25,335.60 and 9,975.65

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Solution

The fourth proportional to 18,359.15, 25,335.60 and 9,975.65 is: 13,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.15 : 25,335.60 = 9,975.65 : x
  2. Step 2: Convert to fraction form
    18,359.15/25,335.60 = 9,975.65/x
  3. Step 3: Cross multiply
    18,359.15x = 25,335.60 × 9,975.65
  4. Step 4: Simplify right side
    18,359.15x = 252,738,951.46
  5. Step 5: Solve for x
    x = 252,738,951.46/18,359.15
  6. Step 6: Final answer
    x = 13,766.38

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Double scale
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Similar ratio
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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.