Home / 13,723.53-18,939.41-8,348.06

Finding the Fourth Proportional to 13,723.53, 18,939.41 and 8,348.06

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Solution

The fourth proportional to 13,723.53, 18,939.41 and 8,348.06 is: 11,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.53 : 18,939.41 = 8,348.06 : x
  2. Step 2: Convert to fraction form
    13,723.53/18,939.41 = 8,348.06/x
  3. Step 3: Cross multiply
    13,723.53x = 18,939.41 × 8,348.06
  4. Step 4: Simplify right side
    13,723.53x = 158,107,331.04
  5. Step 5: Solve for x
    x = 158,107,331.04/13,723.53
  6. Step 6: Final answer
    x = 11,520.89

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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.