Home / 19,837.20-27,367.88-12,667.39

Finding the Fourth Proportional to 19,837.20, 27,367.88 and 12,667.39

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Solution

The fourth proportional to 19,837.20, 27,367.88 and 12,667.39 is: 17,476.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,837.20 : 27,367.88 = 12,667.39 : x
  2. Step 2: Convert to fraction form
    19,837.20/27,367.88 = 12,667.39/x
  3. Step 3: Cross multiply
    19,837.20x = 27,367.88 × 12,667.39
  4. Step 4: Simplify right side
    19,837.20x = 346,679,477.68
  5. Step 5: Solve for x
    x = 346,679,477.68/19,837.20
  6. Step 6: Final answer
    x = 17,476.23

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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.