Home / 18,360.85-27,542.34-5,212.20

Finding the Fourth Proportional to 18,360.85, 27,542.34 and 5,212.20

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Solution

The fourth proportional to 18,360.85, 27,542.34 and 5,212.20 is: 7,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.85 : 27,542.34 = 5,212.20 : x
  2. Step 2: Convert to fraction form
    18,360.85/27,542.34 = 5,212.20/x
  3. Step 3: Cross multiply
    18,360.85x = 27,542.34 × 5,212.20
  4. Step 4: Simplify right side
    18,360.85x = 143,556,184.55
  5. Step 5: Solve for x
    x = 143,556,184.55/18,360.85
  6. Step 6: Final answer
    x = 7,818.60

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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.