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Finding the Fourth Proportional to 18,505.08, 27,756.54 and 4,653

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Solution

The fourth proportional to 18,505.08, 27,756.54 and 4,653 is: 6,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.08 : 27,756.54 = 4,653 : x
  2. Step 2: Convert to fraction form
    18,505.08/27,756.54 = 4,653/x
  3. Step 3: Cross multiply
    18,505.08x = 27,756.54 × 4,653
  4. Step 4: Simplify right side
    18,505.08x = 129,151,180.62
  5. Step 5: Solve for x
    x = 129,151,180.62/18,505.08
  6. Step 6: Final answer
    x = 6,979.23

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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.