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Finding the Fourth Proportional to 6,393.80, 8,826.63 and 4,954.94

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Solution

The fourth proportional to 6,393.80, 8,826.63 and 4,954.94 is: 6,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.80 : 8,826.63 = 4,954.94 : x
  2. Step 2: Convert to fraction form
    6,393.80/8,826.63 = 4,954.94/x
  3. Step 3: Cross multiply
    6,393.80x = 8,826.63 × 4,954.94
  4. Step 4: Simplify right side
    6,393.80x = 43,735,353.14
  5. Step 5: Solve for x
    x = 43,735,353.14/6,393.80
  6. Step 6: Final answer
    x = 6,840.28

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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.