Home / 13,412.82-20,103.75-9,849.90

Finding the Fourth Proportional to 13,412.82, 20,103.75 and 9,849.90

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Solution

The fourth proportional to 13,412.82, 20,103.75 and 9,849.90 is: 14,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.82 : 20,103.75 = 9,849.90 : x
  2. Step 2: Convert to fraction form
    13,412.82/20,103.75 = 9,849.90/x
  3. Step 3: Cross multiply
    13,412.82x = 20,103.75 × 9,849.90
  4. Step 4: Simplify right side
    13,412.82x = 198,019,927.13
  5. Step 5: Solve for x
    x = 198,019,927.13/13,412.82
  6. Step 6: Final answer
    x = 14,763.48

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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.