Home / 7,344.48-10,126.44-6,396.78

Finding the Fourth Proportional to 7,344.48, 10,126.44 and 6,396.78

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Solution

The fourth proportional to 7,344.48, 10,126.44 and 6,396.78 is: 8,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.48 : 10,126.44 = 6,396.78 : x
  2. Step 2: Convert to fraction form
    7,344.48/10,126.44 = 6,396.78/x
  3. Step 3: Cross multiply
    7,344.48x = 10,126.44 × 6,396.78
  4. Step 4: Simplify right side
    7,344.48x = 64,776,608.86
  5. Step 5: Solve for x
    x = 64,776,608.86/7,344.48
  6. Step 6: Final answer
    x = 8,819.77

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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.