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Finding the Fourth Proportional to 18,216.78, 27,318.01 and 8,854.06

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Solution

The fourth proportional to 18,216.78, 27,318.01 and 8,854.06 is: 13,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.78 : 27,318.01 = 8,854.06 : x
  2. Step 2: Convert to fraction form
    18,216.78/27,318.01 = 8,854.06/x
  3. Step 3: Cross multiply
    18,216.78x = 27,318.01 × 8,854.06
  4. Step 4: Simplify right side
    18,216.78x = 241,875,118.76
  5. Step 5: Solve for x
    x = 241,875,118.76/18,216.78
  6. Step 6: Final answer
    x = 13,277.60

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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.