Home / 13,972.08-20,960.87-4,611.72

Finding the Fourth Proportional to 13,972.08, 20,960.87 and 4,611.72

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Solution

The fourth proportional to 13,972.08, 20,960.87 and 4,611.72 is: 6,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.08 : 20,960.87 = 4,611.72 : x
  2. Step 2: Convert to fraction form
    13,972.08/20,960.87 = 4,611.72/x
  3. Step 3: Cross multiply
    13,972.08x = 20,960.87 × 4,611.72
  4. Step 4: Simplify right side
    13,972.08x = 96,665,640.34
  5. Step 5: Solve for x
    x = 96,665,640.34/13,972.08
  6. Step 6: Final answer
    x = 6,918.49

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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.