Home / 18,301.55-27,482.69-11,419.79

Finding the Fourth Proportional to 18,301.55, 27,482.69 and 11,419.79

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Solution

The fourth proportional to 18,301.55, 27,482.69 and 11,419.79 is: 17,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.55 : 27,482.69 = 11,419.79 : x
  2. Step 2: Convert to fraction form
    18,301.55/27,482.69 = 11,419.79/x
  3. Step 3: Cross multiply
    18,301.55x = 27,482.69 × 11,419.79
  4. Step 4: Simplify right side
    18,301.55x = 313,846,439.57
  5. Step 5: Solve for x
    x = 313,846,439.57/18,301.55
  6. Step 6: Final answer
    x = 17,148.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.