Home / 18,609.57-25,685.26-11,445.65

Finding the Fourth Proportional to 18,609.57, 25,685.26 and 11,445.65

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Solution

The fourth proportional to 18,609.57, 25,685.26 and 11,445.65 is: 15,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.57 : 25,685.26 = 11,445.65 : x
  2. Step 2: Convert to fraction form
    18,609.57/25,685.26 = 11,445.65/x
  3. Step 3: Cross multiply
    18,609.57x = 25,685.26 × 11,445.65
  4. Step 4: Simplify right side
    18,609.57x = 293,984,367.69
  5. Step 5: Solve for x
    x = 293,984,367.69/18,609.57
  6. Step 6: Final answer
    x = 15,797.48

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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.