Home / 11,855.20-16,363.43-7,376.28

Finding the Fourth Proportional to 11,855.20, 16,363.43 and 7,376.28

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Solution

The fourth proportional to 11,855.20, 16,363.43 and 7,376.28 is: 10,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.20 : 16,363.43 = 7,376.28 : x
  2. Step 2: Convert to fraction form
    11,855.20/16,363.43 = 7,376.28/x
  3. Step 3: Cross multiply
    11,855.20x = 16,363.43 × 7,376.28
  4. Step 4: Simplify right side
    11,855.20x = 120,701,241.44
  5. Step 5: Solve for x
    x = 120,701,241.44/11,855.20
  6. Step 6: Final answer
    x = 10,181.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.