Home / 18,309.35-25,257.62-11,583.65

Finding the Fourth Proportional to 18,309.35, 25,257.62 and 11,583.65

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Solution

The fourth proportional to 18,309.35, 25,257.62 and 11,583.65 is: 15,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.35 : 25,257.62 = 11,583.65 : x
  2. Step 2: Convert to fraction form
    18,309.35/25,257.62 = 11,583.65/x
  3. Step 3: Cross multiply
    18,309.35x = 25,257.62 × 11,583.65
  4. Step 4: Simplify right side
    18,309.35x = 292,575,245.71
  5. Step 5: Solve for x
    x = 292,575,245.71/18,309.35
  6. Step 6: Final answer
    x = 15,979.56

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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.