Home / 13,975.84-20,960.88-4,113.04

Finding the Fourth Proportional to 13,975.84, 20,960.88 and 4,113.04

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Solution

The fourth proportional to 13,975.84, 20,960.88 and 4,113.04 is: 6,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.84 : 20,960.88 = 4,113.04 : x
  2. Step 2: Convert to fraction form
    13,975.84/20,960.88 = 4,113.04/x
  3. Step 3: Cross multiply
    13,975.84x = 20,960.88 × 4,113.04
  4. Step 4: Simplify right side
    13,975.84x = 86,212,937.88
  5. Step 5: Solve for x
    x = 86,212,937.88/13,975.84
  6. Step 6: Final answer
    x = 6,168.71

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1.5x scale

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.