Home / 18,704.72-28,069.23-9,945.79

Finding the Fourth Proportional to 18,704.72, 28,069.23 and 9,945.79

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Solution

The fourth proportional to 18,704.72, 28,069.23 and 9,945.79 is: 14,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.72 : 28,069.23 = 9,945.79 : x
  2. Step 2: Convert to fraction form
    18,704.72/28,069.23 = 9,945.79/x
  3. Step 3: Cross multiply
    18,704.72x = 28,069.23 × 9,945.79
  4. Step 4: Simplify right side
    18,704.72x = 279,170,634.17
  5. Step 5: Solve for x
    x = 279,170,634.17/18,704.72
  6. Step 6: Final answer
    x = 14,925.14

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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.