Home / 12,717-19,080.36-4,926.42

Finding the Fourth Proportional to 12,717, 19,080.36 and 4,926.42

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Solution

The fourth proportional to 12,717, 19,080.36 and 4,926.42 is: 7,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717 : 19,080.36 = 4,926.42 : x
  2. Step 2: Convert to fraction form
    12,717/19,080.36 = 4,926.42/x
  3. Step 3: Cross multiply
    12,717x = 19,080.36 × 4,926.42
  4. Step 4: Simplify right side
    12,717x = 93,997,867.11
  5. Step 5: Solve for x
    x = 93,997,867.11/12,717
  6. Step 6: Final answer
    x = 7,391.51

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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.