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Finding the Fourth Proportional to 6,335.20, 8,730.48 and 5,505.76

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Solution

The fourth proportional to 6,335.20, 8,730.48 and 5,505.76 is: 7,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,335.20 : 8,730.48 = 5,505.76 : x
  2. Step 2: Convert to fraction form
    6,335.20/8,730.48 = 5,505.76/x
  3. Step 3: Cross multiply
    6,335.20x = 8,730.48 × 5,505.76
  4. Step 4: Simplify right side
    6,335.20x = 48,067,927.56
  5. Step 5: Solve for x
    x = 48,067,927.56/6,335.20
  6. Step 6: Final answer
    x = 7,587.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.