Home / 19,707.06-27,149.54-13,727.91

Finding the Fourth Proportional to 19,707.06, 27,149.54 and 13,727.91

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Solution

The fourth proportional to 19,707.06, 27,149.54 and 13,727.91 is: 18,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.06 : 27,149.54 = 13,727.91 : x
  2. Step 2: Convert to fraction form
    19,707.06/27,149.54 = 13,727.91/x
  3. Step 3: Cross multiply
    19,707.06x = 27,149.54 × 13,727.91
  4. Step 4: Simplify right side
    19,707.06x = 372,706,373.02
  5. Step 5: Solve for x
    x = 372,706,373.02/19,707.06
  6. Step 6: Final answer
    x = 18,912.33

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1.5x scale

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.