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Finding the Fourth Proportional to 6,638.60, 8,835.26 and 6,638.60

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Solution

The fourth proportional to 6,638.60, 8,835.26 and 6,638.60 is: 8,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.60 : 8,835.26 = 6,638.60 : x
  2. Step 2: Convert to fraction form
    6,638.60/8,835.26 = 6,638.60/x
  3. Step 3: Cross multiply
    6,638.60x = 8,835.26 × 6,638.60
  4. Step 4: Simplify right side
    6,638.60x = 58,653,757.04
  5. Step 5: Solve for x
    x = 58,653,757.04/6,638.60
  6. Step 6: Final answer
    x = 8,835.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.