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Finding the Fourth Proportional to 6,636.82, 9,962.02 and 5,478.88

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Solution

The fourth proportional to 6,636.82, 9,962.02 and 5,478.88 is: 8,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.82 : 9,962.02 = 5,478.88 : x
  2. Step 2: Convert to fraction form
    6,636.82/9,962.02 = 5,478.88/x
  3. Step 3: Cross multiply
    6,636.82x = 9,962.02 × 5,478.88
  4. Step 4: Simplify right side
    6,636.82x = 54,580,712.14
  5. Step 5: Solve for x
    x = 54,580,712.14/6,636.82
  6. Step 6: Final answer
    x = 8,223.93

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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.