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Finding the Fourth Proportional to 13,371.39, 20,016.90 and 13,053.06

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Solution

The fourth proportional to 13,371.39, 20,016.90 and 13,053.06 is: 19,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.39 : 20,016.90 = 13,053.06 : x
  2. Step 2: Convert to fraction form
    13,371.39/20,016.90 = 13,053.06/x
  3. Step 3: Cross multiply
    13,371.39x = 20,016.90 × 13,053.06
  4. Step 4: Simplify right side
    13,371.39x = 261,281,796.71
  5. Step 5: Solve for x
    x = 261,281,796.71/13,371.39
  6. Step 6: Final answer
    x = 19,540.36

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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.