Home / 13,991.27-19,306.76-8,247.83

Finding the Fourth Proportional to 13,991.27, 19,306.76 and 8,247.83

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Solution

The fourth proportional to 13,991.27, 19,306.76 and 8,247.83 is: 11,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.27 : 19,306.76 = 8,247.83 : x
  2. Step 2: Convert to fraction form
    13,991.27/19,306.76 = 8,247.83/x
  3. Step 3: Cross multiply
    13,991.27x = 19,306.76 × 8,247.83
  4. Step 4: Simplify right side
    13,991.27x = 159,238,736.56
  5. Step 5: Solve for x
    x = 159,238,736.56/13,991.27
  6. Step 6: Final answer
    x = 11,381.30

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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.