Home / 11,792.20-17,670.48-7,889.62

Finding the Fourth Proportional to 11,792.20, 17,670.48 and 7,889.62

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Solution

The fourth proportional to 11,792.20, 17,670.48 and 7,889.62 is: 11,822.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,792.20 : 17,670.48 = 7,889.62 : x
  2. Step 2: Convert to fraction form
    11,792.20/17,670.48 = 7,889.62/x
  3. Step 3: Cross multiply
    11,792.20x = 17,670.48 × 7,889.62
  4. Step 4: Simplify right side
    11,792.20x = 139,413,372.42
  5. Step 5: Solve for x
    x = 139,413,372.42/11,792.20
  6. Step 6: Final answer
    x = 11,822.51

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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.