Home / 18,131.16-25,022.51-10,065.57

Finding the Fourth Proportional to 18,131.16, 25,022.51 and 10,065.57

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Solution

The fourth proportional to 18,131.16, 25,022.51 and 10,065.57 is: 13,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.16 : 25,022.51 = 10,065.57 : x
  2. Step 2: Convert to fraction form
    18,131.16/25,022.51 = 10,065.57/x
  3. Step 3: Cross multiply
    18,131.16x = 25,022.51 × 10,065.57
  4. Step 4: Simplify right side
    18,131.16x = 251,865,775.65
  5. Step 5: Solve for x
    x = 251,865,775.65/18,131.16
  6. Step 6: Final answer
    x = 13,891.32

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Half scale
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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.