Home / 13,384.92-18,372.27-11,859.48

Finding the Fourth Proportional to 13,384.92, 18,372.27 and 11,859.48

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Solution

The fourth proportional to 13,384.92, 18,372.27 and 11,859.48 is: 16,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.92 : 18,372.27 = 11,859.48 : x
  2. Step 2: Convert to fraction form
    13,384.92/18,372.27 = 11,859.48/x
  3. Step 3: Cross multiply
    13,384.92x = 18,372.27 × 11,859.48
  4. Step 4: Simplify right side
    13,384.92x = 217,885,568.62
  5. Step 5: Solve for x
    x = 217,885,568.62/13,384.92
  6. Step 6: Final answer
    x = 16,278.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.