Home / 18,619.11-25,694.28-10,121.18

Finding the Fourth Proportional to 18,619.11, 25,694.28 and 10,121.18

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Solution

The fourth proportional to 18,619.11, 25,694.28 and 10,121.18 is: 13,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.11 : 25,694.28 = 10,121.18 : x
  2. Step 2: Convert to fraction form
    18,619.11/25,694.28 = 10,121.18/x
  3. Step 3: Cross multiply
    18,619.11x = 25,694.28 × 10,121.18
  4. Step 4: Simplify right side
    18,619.11x = 260,056,304.38
  5. Step 5: Solve for x
    x = 260,056,304.38/18,619.11
  6. Step 6: Final answer
    x = 13,967.17

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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.