Home / 13,971.66-20,957.54-13,270.91

Finding the Fourth Proportional to 13,971.66, 20,957.54 and 13,270.91

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Solution

The fourth proportional to 13,971.66, 20,957.54 and 13,270.91 is: 19,906.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.66 : 20,957.54 = 13,270.91 : x
  2. Step 2: Convert to fraction form
    13,971.66/20,957.54 = 13,270.91/x
  3. Step 3: Cross multiply
    13,971.66x = 20,957.54 × 13,270.91
  4. Step 4: Simplify right side
    13,971.66x = 278,125,456.02
  5. Step 5: Solve for x
    x = 278,125,456.02/13,971.66
  6. Step 6: Final answer
    x = 19,906.41

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1.5x scale

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.