Home / 12,699.45-19,052.24-3,934.40

Finding the Fourth Proportional to 12,699.45, 19,052.24 and 3,934.40

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Solution

The fourth proportional to 12,699.45, 19,052.24 and 3,934.40 is: 5,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.45 : 19,052.24 = 3,934.40 : x
  2. Step 2: Convert to fraction form
    12,699.45/19,052.24 = 3,934.40/x
  3. Step 3: Cross multiply
    12,699.45x = 19,052.24 × 3,934.40
  4. Step 4: Simplify right side
    12,699.45x = 74,959,018.12
  5. Step 5: Solve for x
    x = 74,959,018.12/12,699.45
  6. Step 6: Final answer
    x = 5,902.54

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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.