Home / 19,772.52-27,284.22-13,386.12

Finding the Fourth Proportional to 19,772.52, 27,284.22 and 13,386.12

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Solution

The fourth proportional to 19,772.52, 27,284.22 and 13,386.12 is: 18,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.52 : 27,284.22 = 13,386.12 : x
  2. Step 2: Convert to fraction form
    19,772.52/27,284.22 = 13,386.12/x
  3. Step 3: Cross multiply
    19,772.52x = 27,284.22 × 13,386.12
  4. Step 4: Simplify right side
    19,772.52x = 365,229,843.03
  5. Step 5: Solve for x
    x = 365,229,843.03/19,772.52
  6. Step 6: Final answer
    x = 18,471.59

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Double scale
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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.