Home / 12,425.12-18,644.88-5,499.44

Finding the Fourth Proportional to 12,425.12, 18,644.88 and 5,499.44

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Solution

The fourth proportional to 12,425.12, 18,644.88 and 5,499.44 is: 8,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.12 : 18,644.88 = 5,499.44 : x
  2. Step 2: Convert to fraction form
    12,425.12/18,644.88 = 5,499.44/x
  3. Step 3: Cross multiply
    12,425.12x = 18,644.88 × 5,499.44
  4. Step 4: Simplify right side
    12,425.12x = 102,536,398.87
  5. Step 5: Solve for x
    x = 102,536,398.87/12,425.12
  6. Step 6: Final answer
    x = 8,252.35

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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.