Home / 13,874.57-19,144.40-8,206.49

Finding the Fourth Proportional to 13,874.57, 19,144.40 and 8,206.49

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Solution

The fourth proportional to 13,874.57, 19,144.40 and 8,206.49 is: 11,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.57 : 19,144.40 = 8,206.49 : x
  2. Step 2: Convert to fraction form
    13,874.57/19,144.40 = 8,206.49/x
  3. Step 3: Cross multiply
    13,874.57x = 19,144.40 × 8,206.49
  4. Step 4: Simplify right side
    13,874.57x = 157,108,395.53
  5. Step 5: Solve for x
    x = 157,108,395.53/13,874.57
  6. Step 6: Final answer
    x = 11,323.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.