Home / 13,965.73-20,940.49-5,638.93

Finding the Fourth Proportional to 13,965.73, 20,940.49 and 5,638.93

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Solution

The fourth proportional to 13,965.73, 20,940.49 and 5,638.93 is: 8,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.73 : 20,940.49 = 5,638.93 : x
  2. Step 2: Convert to fraction form
    13,965.73/20,940.49 = 5,638.93/x
  3. Step 3: Cross multiply
    13,965.73x = 20,940.49 × 5,638.93
  4. Step 4: Simplify right side
    13,965.73x = 118,081,957.28
  5. Step 5: Solve for x
    x = 118,081,957.28/13,965.73
  6. Step 6: Final answer
    x = 8,455.12

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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.