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Finding the Fourth Proportional to 6,630.26, 9,930.99 and 6,445.94

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Solution

The fourth proportional to 6,630.26, 9,930.99 and 6,445.94 is: 9,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.26 : 9,930.99 = 6,445.94 : x
  2. Step 2: Convert to fraction form
    6,630.26/9,930.99 = 6,445.94/x
  3. Step 3: Cross multiply
    6,630.26x = 9,930.99 × 6,445.94
  4. Step 4: Simplify right side
    6,630.26x = 64,014,565.68
  5. Step 5: Solve for x
    x = 64,014,565.68/6,630.26
  6. Step 6: Final answer
    x = 9,654.91

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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.