Home / 13,395.15-18,488.75-8,093.61

Finding the Fourth Proportional to 13,395.15, 18,488.75 and 8,093.61

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Solution

The fourth proportional to 13,395.15, 18,488.75 and 8,093.61 is: 11,171.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.15 : 18,488.75 = 8,093.61 : x
  2. Step 2: Convert to fraction form
    13,395.15/18,488.75 = 8,093.61/x
  3. Step 3: Cross multiply
    13,395.15x = 18,488.75 × 8,093.61
  4. Step 4: Simplify right side
    13,395.15x = 149,640,691.42
  5. Step 5: Solve for x
    x = 149,640,691.42/13,395.15
  6. Step 6: Final answer
    x = 11,171.26

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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.