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Finding the Fourth Proportional to 6,648.31, 9,893.98 and 6,426.84

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Solution

The fourth proportional to 6,648.31, 9,893.98 and 6,426.84 is: 9,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.31 : 9,893.98 = 6,426.84 : x
  2. Step 2: Convert to fraction form
    6,648.31/9,893.98 = 6,426.84/x
  3. Step 3: Cross multiply
    6,648.31x = 9,893.98 × 6,426.84
  4. Step 4: Simplify right side
    6,648.31x = 63,587,026.42
  5. Step 5: Solve for x
    x = 63,587,026.42/6,648.31
  6. Step 6: Final answer
    x = 9,564.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.