Home / 18,108.21-27,150.66-7,575.39

Finding the Fourth Proportional to 18,108.21, 27,150.66 and 7,575.39

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Solution

The fourth proportional to 18,108.21, 27,150.66 and 7,575.39 is: 11,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.21 : 27,150.66 = 7,575.39 : x
  2. Step 2: Convert to fraction form
    18,108.21/27,150.66 = 7,575.39/x
  3. Step 3: Cross multiply
    18,108.21x = 27,150.66 × 7,575.39
  4. Step 4: Simplify right side
    18,108.21x = 205,676,838.26
  5. Step 5: Solve for x
    x = 205,676,838.26/18,108.21
  6. Step 6: Final answer
    x = 11,358.21

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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.