Home / 14,113.82-21,172.14-3,725.57

Finding the Fourth Proportional to 14,113.82, 21,172.14 and 3,725.57

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Solution

The fourth proportional to 14,113.82, 21,172.14 and 3,725.57 is: 5,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.82 : 21,172.14 = 3,725.57 : x
  2. Step 2: Convert to fraction form
    14,113.82/21,172.14 = 3,725.57/x
  3. Step 3: Cross multiply
    14,113.82x = 21,172.14 × 3,725.57
  4. Step 4: Simplify right side
    14,113.82x = 78,878,289.62
  5. Step 5: Solve for x
    x = 78,878,289.62/14,113.82
  6. Step 6: Final answer
    x = 5,588.73

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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.