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Finding the Fourth Proportional to 18,807.26, 28,195.49 and 9,435.96

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Solution

The fourth proportional to 18,807.26, 28,195.49 and 9,435.96 is: 14,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.26 : 28,195.49 = 9,435.96 : x
  2. Step 2: Convert to fraction form
    18,807.26/28,195.49 = 9,435.96/x
  3. Step 3: Cross multiply
    18,807.26x = 28,195.49 × 9,435.96
  4. Step 4: Simplify right side
    18,807.26x = 266,051,468.64
  5. Step 5: Solve for x
    x = 266,051,468.64/18,807.26
  6. Step 6: Final answer
    x = 14,146.21

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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.