Home / 13,306.92-18,371.40-11,830.80

Finding the Fourth Proportional to 13,306.92, 18,371.40 and 11,830.80

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Solution

The fourth proportional to 13,306.92, 18,371.40 and 11,830.80 is: 16,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.92 : 18,371.40 = 11,830.80 : x
  2. Step 2: Convert to fraction form
    13,306.92/18,371.40 = 11,830.80/x
  3. Step 3: Cross multiply
    13,306.92x = 18,371.40 × 11,830.80
  4. Step 4: Simplify right side
    13,306.92x = 217,348,359.12
  5. Step 5: Solve for x
    x = 217,348,359.12/13,306.92
  6. Step 6: Final answer
    x = 16,333.48

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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.