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Finding the Fourth Proportional to 6,321.43, 9,477.02 and 5,629.45

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Solution

The fourth proportional to 6,321.43, 9,477.02 and 5,629.45 is: 8,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.43 : 9,477.02 = 5,629.45 : x
  2. Step 2: Convert to fraction form
    6,321.43/9,477.02 = 5,629.45/x
  3. Step 3: Cross multiply
    6,321.43x = 9,477.02 × 5,629.45
  4. Step 4: Simplify right side
    6,321.43x = 53,350,410.24
  5. Step 5: Solve for x
    x = 53,350,410.24/6,321.43
  6. Step 6: Final answer
    x = 8,439.61

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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.