Home / 19,708.36-27,186.96-13,326.58

Finding the Fourth Proportional to 19,708.36, 27,186.96 and 13,326.58

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Solution

The fourth proportional to 19,708.36, 27,186.96 and 13,326.58 is: 18,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.36 : 27,186.96 = 13,326.58 : x
  2. Step 2: Convert to fraction form
    19,708.36/27,186.96 = 13,326.58/x
  3. Step 3: Cross multiply
    19,708.36x = 27,186.96 × 13,326.58
  4. Step 4: Simplify right side
    19,708.36x = 362,309,197.40
  5. Step 5: Solve for x
    x = 362,309,197.40/19,708.36
  6. Step 6: Final answer
    x = 18,383.53

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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.