Home / 13,177.49-19,763.30-3,815.45

Finding the Fourth Proportional to 13,177.49, 19,763.30 and 3,815.45

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Solution

The fourth proportional to 13,177.49, 19,763.30 and 3,815.45 is: 5,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.49 : 19,763.30 = 3,815.45 : x
  2. Step 2: Convert to fraction form
    13,177.49/19,763.30 = 3,815.45/x
  3. Step 3: Cross multiply
    13,177.49x = 19,763.30 × 3,815.45
  4. Step 4: Simplify right side
    13,177.49x = 75,405,941.93
  5. Step 5: Solve for x
    x = 75,405,941.93/13,177.49
  6. Step 6: Final answer
    x = 5,722.33

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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.