Home / 13,848.84-20,773.25-8,781.81

Finding the Fourth Proportional to 13,848.84, 20,773.25 and 8,781.81

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Solution

The fourth proportional to 13,848.84, 20,773.25 and 8,781.81 is: 13,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.84 : 20,773.25 = 8,781.81 : x
  2. Step 2: Convert to fraction form
    13,848.84/20,773.25 = 8,781.81/x
  3. Step 3: Cross multiply
    13,848.84x = 20,773.25 × 8,781.81
  4. Step 4: Simplify right side
    13,848.84x = 182,426,741.88
  5. Step 5: Solve for x
    x = 182,426,741.88/13,848.84
  6. Step 6: Final answer
    x = 13,172.71

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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.