Home / 18,135.98-27,202.66-4,808.67

Finding the Fourth Proportional to 18,135.98, 27,202.66 and 4,808.67

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Solution

The fourth proportional to 18,135.98, 27,202.66 and 4,808.67 is: 7,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.98 : 27,202.66 = 4,808.67 : x
  2. Step 2: Convert to fraction form
    18,135.98/27,202.66 = 4,808.67/x
  3. Step 3: Cross multiply
    18,135.98x = 27,202.66 × 4,808.67
  4. Step 4: Simplify right side
    18,135.98x = 130,808,514.55
  5. Step 5: Solve for x
    x = 130,808,514.55/18,135.98
  6. Step 6: Final answer
    x = 7,212.65

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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.