Home / 18,121.12-27,186.54-14,437.24

Finding the Fourth Proportional to 18,121.12, 27,186.54 and 14,437.24

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Solution

The fourth proportional to 18,121.12, 27,186.54 and 14,437.24 is: 21,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.12 : 27,186.54 = 14,437.24 : x
  2. Step 2: Convert to fraction form
    18,121.12/27,186.54 = 14,437.24/x
  3. Step 3: Cross multiply
    18,121.12x = 27,186.54 × 14,437.24
  4. Step 4: Simplify right side
    18,121.12x = 392,498,602.75
  5. Step 5: Solve for x
    x = 392,498,602.75/18,121.12
  6. Step 6: Final answer
    x = 21,659.73

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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.