Home / 13,323.76-19,986.86-3,963.70

Finding the Fourth Proportional to 13,323.76, 19,986.86 and 3,963.70

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Solution

The fourth proportional to 13,323.76, 19,986.86 and 3,963.70 is: 5,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.76 : 19,986.86 = 3,963.70 : x
  2. Step 2: Convert to fraction form
    13,323.76/19,986.86 = 3,963.70/x
  3. Step 3: Cross multiply
    13,323.76x = 19,986.86 × 3,963.70
  4. Step 4: Simplify right side
    13,323.76x = 79,221,916.98
  5. Step 5: Solve for x
    x = 79,221,916.98/13,323.76
  6. Step 6: Final answer
    x = 5,945.91

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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.