Home / 12,873.12-19,308.15-3,513.90

Finding the Fourth Proportional to 12,873.12, 19,308.15 and 3,513.90

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Solution

The fourth proportional to 12,873.12, 19,308.15 and 3,513.90 is: 5,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.12 : 19,308.15 = 3,513.90 : x
  2. Step 2: Convert to fraction form
    12,873.12/19,308.15 = 3,513.90/x
  3. Step 3: Cross multiply
    12,873.12x = 19,308.15 × 3,513.90
  4. Step 4: Simplify right side
    12,873.12x = 67,846,908.29
  5. Step 5: Solve for x
    x = 67,846,908.29/12,873.12
  6. Step 6: Final answer
    x = 5,270.43

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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.