Home / 8,548.20-12,822.30-4,789.80

Finding the Fourth Proportional to 8,548.20, 12,822.30 and 4,789.80

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Solution

The fourth proportional to 8,548.20, 12,822.30 and 4,789.80 is: 7,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.20 : 12,822.30 = 4,789.80 : x
  2. Step 2: Convert to fraction form
    8,548.20/12,822.30 = 4,789.80/x
  3. Step 3: Cross multiply
    8,548.20x = 12,822.30 × 4,789.80
  4. Step 4: Simplify right side
    8,548.20x = 61,416,252.54
  5. Step 5: Solve for x
    x = 61,416,252.54/8,548.20
  6. Step 6: Final answer
    x = 7,184.70

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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.