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Finding the Fourth Proportional to 6,630.72, 9,985.56 and 5,775.36

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Solution

The fourth proportional to 6,630.72, 9,985.56 and 5,775.36 is: 8,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.72 : 9,985.56 = 5,775.36 : x
  2. Step 2: Convert to fraction form
    6,630.72/9,985.56 = 5,775.36/x
  3. Step 3: Cross multiply
    6,630.72x = 9,985.56 × 5,775.36
  4. Step 4: Simplify right side
    6,630.72x = 57,670,203.80
  5. Step 5: Solve for x
    x = 57,670,203.80/6,630.72
  6. Step 6: Final answer
    x = 8,697.43

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.