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Finding the Fourth Proportional to 18,888.69, 28,333.09 and 9,025.73

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Solution

The fourth proportional to 18,888.69, 28,333.09 and 9,025.73 is: 13,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.69 : 28,333.09 = 9,025.73 : x
  2. Step 2: Convert to fraction form
    18,888.69/28,333.09 = 9,025.73/x
  3. Step 3: Cross multiply
    18,888.69x = 28,333.09 × 9,025.73
  4. Step 4: Simplify right side
    18,888.69x = 255,726,796.27
  5. Step 5: Solve for x
    x = 255,726,796.27/18,888.69
  6. Step 6: Final answer
    x = 13,538.62

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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.