Home / 13,239.97-19,857.76-4,355.41

Finding the Fourth Proportional to 13,239.97, 19,857.76 and 4,355.41

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Solution

The fourth proportional to 13,239.97, 19,857.76 and 4,355.41 is: 6,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.97 : 19,857.76 = 4,355.41 : x
  2. Step 2: Convert to fraction form
    13,239.97/19,857.76 = 4,355.41/x
  3. Step 3: Cross multiply
    13,239.97x = 19,857.76 × 4,355.41
  4. Step 4: Simplify right side
    13,239.97x = 86,488,687.68
  5. Step 5: Solve for x
    x = 86,488,687.68/13,239.97
  6. Step 6: Final answer
    x = 6,532.39

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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.