Home / 7,440.62-10,249.72-6,374.90

Finding the Fourth Proportional to 7,440.62, 10,249.72 and 6,374.90

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Solution

The fourth proportional to 7,440.62, 10,249.72 and 6,374.90 is: 8,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.62 : 10,249.72 = 6,374.90 : x
  2. Step 2: Convert to fraction form
    7,440.62/10,249.72 = 6,374.90/x
  3. Step 3: Cross multiply
    7,440.62x = 10,249.72 × 6,374.90
  4. Step 4: Simplify right side
    7,440.62x = 65,340,949.72
  5. Step 5: Solve for x
    x = 65,340,949.72/7,440.62
  6. Step 6: Final answer
    x = 8,781.66

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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.