Home / 13,839.55-19,101.19-8,667.82

Finding the Fourth Proportional to 13,839.55, 19,101.19 and 8,667.82

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Solution

The fourth proportional to 13,839.55, 19,101.19 and 8,667.82 is: 11,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.55 : 19,101.19 = 8,667.82 : x
  2. Step 2: Convert to fraction form
    13,839.55/19,101.19 = 8,667.82/x
  3. Step 3: Cross multiply
    13,839.55x = 19,101.19 × 8,667.82
  4. Step 4: Simplify right side
    13,839.55x = 165,565,607.28
  5. Step 5: Solve for x
    x = 165,565,607.28/13,839.55
  6. Step 6: Final answer
    x = 11,963.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.