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Finding the Fourth Proportional to 9,148.50, 13,722.75 and 3,676.50

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Solution

The fourth proportional to 9,148.50, 13,722.75 and 3,676.50 is: 5,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.50 : 13,722.75 = 3,676.50 : x
  2. Step 2: Convert to fraction form
    9,148.50/13,722.75 = 3,676.50/x
  3. Step 3: Cross multiply
    9,148.50x = 13,722.75 × 3,676.50
  4. Step 4: Simplify right side
    9,148.50x = 50,451,690.38
  5. Step 5: Solve for x
    x = 50,451,690.38/9,148.50
  6. Step 6: Final answer
    x = 5,514.75

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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.