Home / 13,848.12-20,790.63-11,781.41

Finding the Fourth Proportional to 13,848.12, 20,790.63 and 11,781.41

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Solution

The fourth proportional to 13,848.12, 20,790.63 and 11,781.41 is: 17,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.12 : 20,790.63 = 11,781.41 : x
  2. Step 2: Convert to fraction form
    13,848.12/20,790.63 = 11,781.41/x
  3. Step 3: Cross multiply
    13,848.12x = 20,790.63 × 11,781.41
  4. Step 4: Simplify right side
    13,848.12x = 244,942,832.24
  5. Step 5: Solve for x
    x = 244,942,832.24/13,848.12
  6. Step 6: Final answer
    x = 17,687.80

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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.