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Finding the Fourth Proportional to 18,277.56, 25,222.92 and 9,894

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Solution

The fourth proportional to 18,277.56, 25,222.92 and 9,894 is: 13,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.56 : 25,222.92 = 9,894 : x
  2. Step 2: Convert to fraction form
    18,277.56/25,222.92 = 9,894/x
  3. Step 3: Cross multiply
    18,277.56x = 25,222.92 × 9,894
  4. Step 4: Simplify right side
    18,277.56x = 249,555,570.48
  5. Step 5: Solve for x
    x = 249,555,570.48/18,277.56
  6. Step 6: Final answer
    x = 13,653.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.