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Finding the Fourth Proportional to 18,504.20, 27,759.95 and 5,356.68

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Solution

The fourth proportional to 18,504.20, 27,759.95 and 5,356.68 is: 8,036.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.20 : 27,759.95 = 5,356.68 : x
  2. Step 2: Convert to fraction form
    18,504.20/27,759.95 = 5,356.68/x
  3. Step 3: Cross multiply
    18,504.20x = 27,759.95 × 5,356.68
  4. Step 4: Simplify right side
    18,504.20x = 148,701,142.18
  5. Step 5: Solve for x
    x = 148,701,142.18/18,504.20
  6. Step 6: Final answer
    x = 8,036.08

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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.