Home / 18,668.65-25,754.37-12,616.96

Finding the Fourth Proportional to 18,668.65, 25,754.37 and 12,616.96

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Solution

The fourth proportional to 18,668.65, 25,754.37 and 12,616.96 is: 17,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.65 : 25,754.37 = 12,616.96 : x
  2. Step 2: Convert to fraction form
    18,668.65/25,754.37 = 12,616.96/x
  3. Step 3: Cross multiply
    18,668.65x = 25,754.37 × 12,616.96
  4. Step 4: Simplify right side
    18,668.65x = 324,941,856.12
  5. Step 5: Solve for x
    x = 324,941,856.12/18,668.65
  6. Step 6: Final answer
    x = 17,405.75

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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.