Home / 13,283.66-18,333.22-8,581.62

Finding the Fourth Proportional to 13,283.66, 18,333.22 and 8,581.62

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Solution

The fourth proportional to 13,283.66, 18,333.22 and 8,581.62 is: 11,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.66 : 18,333.22 = 8,581.62 : x
  2. Step 2: Convert to fraction form
    13,283.66/18,333.22 = 8,581.62/x
  3. Step 3: Cross multiply
    13,283.66x = 18,333.22 × 8,581.62
  4. Step 4: Simplify right side
    13,283.66x = 157,328,727.42
  5. Step 5: Solve for x
    x = 157,328,727.42/13,283.66
  6. Step 6: Final answer
    x = 11,843.78

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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.