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Finding the Fourth Proportional to 18,505.58, 27,757.29 and 4,653.50

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Solution

The fourth proportional to 18,505.58, 27,757.29 and 4,653.50 is: 6,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.58 : 27,757.29 = 4,653.50 : x
  2. Step 2: Convert to fraction form
    18,505.58/27,757.29 = 4,653.50/x
  3. Step 3: Cross multiply
    18,505.58x = 27,757.29 × 4,653.50
  4. Step 4: Simplify right side
    18,505.58x = 129,168,549.02
  5. Step 5: Solve for x
    x = 129,168,549.02/18,505.58
  6. Step 6: Final answer
    x = 6,979.98

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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.