Home / 13,443.73-20,146.50-9,905.92

Finding the Fourth Proportional to 13,443.73, 20,146.50 and 9,905.92

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Solution

The fourth proportional to 13,443.73, 20,146.50 and 9,905.92 is: 14,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.73 : 20,146.50 = 9,905.92 : x
  2. Step 2: Convert to fraction form
    13,443.73/20,146.50 = 9,905.92/x
  3. Step 3: Cross multiply
    13,443.73x = 20,146.50 × 9,905.92
  4. Step 4: Simplify right side
    13,443.73x = 199,569,617.28
  5. Step 5: Solve for x
    x = 199,569,617.28/13,443.73
  6. Step 6: Final answer
    x = 14,844.81

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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.