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Finding the Fourth Proportional to 6,418.32, 8,851.24 and 5,474.48

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Solution

The fourth proportional to 6,418.32, 8,851.24 and 5,474.48 is: 7,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.32 : 8,851.24 = 5,474.48 : x
  2. Step 2: Convert to fraction form
    6,418.32/8,851.24 = 5,474.48/x
  3. Step 3: Cross multiply
    6,418.32x = 8,851.24 × 5,474.48
  4. Step 4: Simplify right side
    6,418.32x = 48,455,936.36
  5. Step 5: Solve for x
    x = 48,455,936.36/6,418.32
  6. Step 6: Final answer
    x = 7,549.63

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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.