Home / 18,138.22-27,217.83-7,607.30

Finding the Fourth Proportional to 18,138.22, 27,217.83 and 7,607.30

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Solution

The fourth proportional to 18,138.22, 27,217.83 and 7,607.30 is: 11,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.22 : 27,217.83 = 7,607.30 : x
  2. Step 2: Convert to fraction form
    18,138.22/27,217.83 = 7,607.30/x
  3. Step 3: Cross multiply
    18,138.22x = 27,217.83 × 7,607.30
  4. Step 4: Simplify right side
    18,138.22x = 207,054,107.48
  5. Step 5: Solve for x
    x = 207,054,107.48/18,138.22
  6. Step 6: Final answer
    x = 11,415.35

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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.