Home / 7,442.42-11,153.83-3,493.06

Finding the Fourth Proportional to 7,442.42, 11,153.83 and 3,493.06

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Solution

The fourth proportional to 7,442.42, 11,153.83 and 3,493.06 is: 5,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.42 : 11,153.83 = 3,493.06 : x
  2. Step 2: Convert to fraction form
    7,442.42/11,153.83 = 3,493.06/x
  3. Step 3: Cross multiply
    7,442.42x = 11,153.83 × 3,493.06
  4. Step 4: Simplify right side
    7,442.42x = 38,960,997.42
  5. Step 5: Solve for x
    x = 38,960,997.42/7,442.42
  6. Step 6: Final answer
    x = 5,234.99

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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.