Home / 18,448.68-25,439.16-13,141.56

Finding the Fourth Proportional to 18,448.68, 25,439.16 and 13,141.56

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Solution

The fourth proportional to 18,448.68, 25,439.16 and 13,141.56 is: 18,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.68 : 25,439.16 = 13,141.56 : x
  2. Step 2: Convert to fraction form
    18,448.68/25,439.16 = 13,141.56/x
  3. Step 3: Cross multiply
    18,448.68x = 25,439.16 × 13,141.56
  4. Step 4: Simplify right side
    18,448.68x = 334,310,247.49
  5. Step 5: Solve for x
    x = 334,310,247.49/18,448.68
  6. Step 6: Final answer
    x = 18,121.09

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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.