Home / 18,218.40-27,342.12-9,455.76

Finding the Fourth Proportional to 18,218.40, 27,342.12 and 9,455.76

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Solution

The fourth proportional to 18,218.40, 27,342.12 and 9,455.76 is: 14,191.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.40 : 27,342.12 = 9,455.76 : x
  2. Step 2: Convert to fraction form
    18,218.40/27,342.12 = 9,455.76/x
  3. Step 3: Cross multiply
    18,218.40x = 27,342.12 × 9,455.76
  4. Step 4: Simplify right side
    18,218.40x = 258,540,524.61
  5. Step 5: Solve for x
    x = 258,540,524.61/18,218.40
  6. Step 6: Final answer
    x = 14,191.18

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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.