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Finding the Fourth Proportional to 18,436.57, 27,654.95 and 4,585.57

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Solution

The fourth proportional to 18,436.57, 27,654.95 and 4,585.57 is: 6,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.57 : 27,654.95 = 4,585.57 : x
  2. Step 2: Convert to fraction form
    18,436.57/27,654.95 = 4,585.57/x
  3. Step 3: Cross multiply
    18,436.57x = 27,654.95 × 4,585.57
  4. Step 4: Simplify right side
    18,436.57x = 126,813,709.07
  5. Step 5: Solve for x
    x = 126,813,709.07/18,436.57
  6. Step 6: Final answer
    x = 6,878.38

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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.