Home / 13,204.62-18,220.14-8,174.52

Finding the Fourth Proportional to 13,204.62, 18,220.14 and 8,174.52

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Solution

The fourth proportional to 13,204.62, 18,220.14 and 8,174.52 is: 11,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.62 : 18,220.14 = 8,174.52 : x
  2. Step 2: Convert to fraction form
    13,204.62/18,220.14 = 8,174.52/x
  3. Step 3: Cross multiply
    13,204.62x = 18,220.14 × 8,174.52
  4. Step 4: Simplify right side
    13,204.62x = 148,940,898.83
  5. Step 5: Solve for x
    x = 148,940,898.83/13,204.62
  6. Step 6: Final answer
    x = 11,279.45

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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.