Home / 13,809.23-19,067.99-11,257.40

Finding the Fourth Proportional to 13,809.23, 19,067.99 and 11,257.40

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Solution

The fourth proportional to 13,809.23, 19,067.99 and 11,257.40 is: 15,544.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.23 : 19,067.99 = 11,257.40 : x
  2. Step 2: Convert to fraction form
    13,809.23/19,067.99 = 11,257.40/x
  3. Step 3: Cross multiply
    13,809.23x = 19,067.99 × 11,257.40
  4. Step 4: Simplify right side
    13,809.23x = 214,655,990.63
  5. Step 5: Solve for x
    x = 214,655,990.63/13,809.23
  6. Step 6: Final answer
    x = 15,544.39

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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.