Home / 18,618.91-25,694.24-10,121.03

Finding the Fourth Proportional to 18,618.91, 25,694.24 and 10,121.03

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Solution

The fourth proportional to 18,618.91, 25,694.24 and 10,121.03 is: 13,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.91 : 25,694.24 = 10,121.03 : x
  2. Step 2: Convert to fraction form
    18,618.91/25,694.24 = 10,121.03/x
  3. Step 3: Cross multiply
    18,618.91x = 25,694.24 × 10,121.03
  4. Step 4: Simplify right side
    18,618.91x = 260,052,070.70
  5. Step 5: Solve for x
    x = 260,052,070.70/18,618.91
  6. Step 6: Final answer
    x = 13,967.10

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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.