Home / 8,342.13-11,512.14-5,198.32

Finding the Fourth Proportional to 8,342.13, 11,512.14 and 5,198.32

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Solution

The fourth proportional to 8,342.13, 11,512.14 and 5,198.32 is: 7,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.13 : 11,512.14 = 5,198.32 : x
  2. Step 2: Convert to fraction form
    8,342.13/11,512.14 = 5,198.32/x
  3. Step 3: Cross multiply
    8,342.13x = 11,512.14 × 5,198.32
  4. Step 4: Simplify right side
    8,342.13x = 59,843,787.60
  5. Step 5: Solve for x
    x = 59,843,787.60/8,342.13
  6. Step 6: Final answer
    x = 7,173.68

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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.