Home / 11,652.78-17,479.56-3,861.36

Finding the Fourth Proportional to 11,652.78, 17,479.56 and 3,861.36

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Solution

The fourth proportional to 11,652.78, 17,479.56 and 3,861.36 is: 5,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652.78 : 17,479.56 = 3,861.36 : x
  2. Step 2: Convert to fraction form
    11,652.78/17,479.56 = 3,861.36/x
  3. Step 3: Cross multiply
    11,652.78x = 17,479.56 × 3,861.36
  4. Step 4: Simplify right side
    11,652.78x = 67,494,873.80
  5. Step 5: Solve for x
    x = 67,494,873.80/11,652.78
  6. Step 6: Final answer
    x = 5,792.17

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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.