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Finding the Fourth Proportional to 18,894.78, 28,330.02 and 9,033.84

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Solution

The fourth proportional to 18,894.78, 28,330.02 and 9,033.84 is: 13,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.78 : 28,330.02 = 9,033.84 : x
  2. Step 2: Convert to fraction form
    18,894.78/28,330.02 = 9,033.84/x
  3. Step 3: Cross multiply
    18,894.78x = 28,330.02 × 9,033.84
  4. Step 4: Simplify right side
    18,894.78x = 255,928,867.88
  5. Step 5: Solve for x
    x = 255,928,867.88/18,894.78
  6. Step 6: Final answer
    x = 13,544.95

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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.