Home / 13,308.80-19,959.60-3,948.80

Finding the Fourth Proportional to 13,308.80, 19,959.60 and 3,948.80

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Solution

The fourth proportional to 13,308.80, 19,959.60 and 3,948.80 is: 5,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.80 : 19,959.60 = 3,948.80 : x
  2. Step 2: Convert to fraction form
    13,308.80/19,959.60 = 3,948.80/x
  3. Step 3: Cross multiply
    13,308.80x = 19,959.60 × 3,948.80
  4. Step 4: Simplify right side
    13,308.80x = 78,816,468.48
  5. Step 5: Solve for x
    x = 78,816,468.48/13,308.80
  6. Step 6: Final answer
    x = 5,922.13

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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.