Home / 12,301.88-18,449.04-11,631.20

Finding the Fourth Proportional to 12,301.88, 18,449.04 and 11,631.20

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Solution

The fourth proportional to 12,301.88, 18,449.04 and 11,631.20 is: 17,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.88 : 18,449.04 = 11,631.20 : x
  2. Step 2: Convert to fraction form
    12,301.88/18,449.04 = 11,631.20/x
  3. Step 3: Cross multiply
    12,301.88x = 18,449.04 × 11,631.20
  4. Step 4: Simplify right side
    12,301.88x = 214,584,474.05
  5. Step 5: Solve for x
    x = 214,584,474.05/12,301.88
  6. Step 6: Final answer
    x = 17,443.23

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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.