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Finding the Fourth Proportional to 6,376.14, 8,777.53 and 5,255.30

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Solution

The fourth proportional to 6,376.14, 8,777.53 and 5,255.30 is: 7,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.14 : 8,777.53 = 5,255.30 : x
  2. Step 2: Convert to fraction form
    6,376.14/8,777.53 = 5,255.30/x
  3. Step 3: Cross multiply
    6,376.14x = 8,777.53 × 5,255.30
  4. Step 4: Simplify right side
    6,376.14x = 46,128,581.92
  5. Step 5: Solve for x
    x = 46,128,581.92/6,376.14
  6. Step 6: Final answer
    x = 7,234.56

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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.