Home / 13,330.80-19,991.52-3,968.28

Finding the Fourth Proportional to 13,330.80, 19,991.52 and 3,968.28

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Solution

The fourth proportional to 13,330.80, 19,991.52 and 3,968.28 is: 5,951.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.80 : 19,991.52 = 3,968.28 : x
  2. Step 2: Convert to fraction form
    13,330.80/19,991.52 = 3,968.28/x
  3. Step 3: Cross multiply
    13,330.80x = 19,991.52 × 3,968.28
  4. Step 4: Simplify right side
    13,330.80x = 79,331,948.99
  5. Step 5: Solve for x
    x = 79,331,948.99/13,330.80
  6. Step 6: Final answer
    x = 5,951.03

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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.