Home / 12,789.12-19,172.16-4,996.02

Finding the Fourth Proportional to 12,789.12, 19,172.16 and 4,996.02

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Solution

The fourth proportional to 12,789.12, 19,172.16 and 4,996.02 is: 7,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.12 : 19,172.16 = 4,996.02 : x
  2. Step 2: Convert to fraction form
    12,789.12/19,172.16 = 4,996.02/x
  3. Step 3: Cross multiply
    12,789.12x = 19,172.16 × 4,996.02
  4. Step 4: Simplify right side
    12,789.12x = 95,784,494.80
  5. Step 5: Solve for x
    x = 95,784,494.80/12,789.12
  6. Step 6: Final answer
    x = 7,489.53

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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.