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Finding the Fourth Proportional to 18,283.11, 27,435.62 and 7,894.86

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Solution

The fourth proportional to 18,283.11, 27,435.62 and 7,894.86 is: 11,847.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.11 : 27,435.62 = 7,894.86 : x
  2. Step 2: Convert to fraction form
    18,283.11/27,435.62 = 7,894.86/x
  3. Step 3: Cross multiply
    18,283.11x = 27,435.62 × 7,894.86
  4. Step 4: Simplify right side
    18,283.11x = 216,600,378.91
  5. Step 5: Solve for x
    x = 216,600,378.91/18,283.11
  6. Step 6: Final answer
    x = 11,847.02

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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.