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Finding the Fourth Proportional to 6,335.20, 9,481.20 and 5,557.60

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Solution

The fourth proportional to 6,335.20, 9,481.20 and 5,557.60 is: 8,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,335.20 : 9,481.20 = 5,557.60 : x
  2. Step 2: Convert to fraction form
    6,335.20/9,481.20 = 5,557.60/x
  3. Step 3: Cross multiply
    6,335.20x = 9,481.20 × 5,557.60
  4. Step 4: Simplify right side
    6,335.20x = 52,692,717.12
  5. Step 5: Solve for x
    x = 52,692,717.12/6,335.20
  6. Step 6: Final answer
    x = 8,317.45

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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.