Home / 13,174.61-18,172.62-8,067.76

Finding the Fourth Proportional to 13,174.61, 18,172.62 and 8,067.76

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Solution

The fourth proportional to 13,174.61, 18,172.62 and 8,067.76 is: 11,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.61 : 18,172.62 = 8,067.76 : x
  2. Step 2: Convert to fraction form
    13,174.61/18,172.62 = 8,067.76/x
  3. Step 3: Cross multiply
    13,174.61x = 18,172.62 × 8,067.76
  4. Step 4: Simplify right side
    13,174.61x = 146,612,291.30
  5. Step 5: Solve for x
    x = 146,612,291.30/13,174.61
  6. Step 6: Final answer
    x = 11,128.40

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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.