Home / 13,838.84-20,756.03-3,975.87

Finding the Fourth Proportional to 13,838.84, 20,756.03 and 3,975.87

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Solution

The fourth proportional to 13,838.84, 20,756.03 and 3,975.87 is: 5,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.84 : 20,756.03 = 3,975.87 : x
  2. Step 2: Convert to fraction form
    13,838.84/20,756.03 = 3,975.87/x
  3. Step 3: Cross multiply
    13,838.84x = 20,756.03 × 3,975.87
  4. Step 4: Simplify right side
    13,838.84x = 82,523,277.00
  5. Step 5: Solve for x
    x = 82,523,277.00/13,838.84
  6. Step 6: Final answer
    x = 5,963.16

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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.