Home / 13,768.29-20,601.41-8,224.65

Finding the Fourth Proportional to 13,768.29, 20,601.41 and 8,224.65

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Solution

The fourth proportional to 13,768.29, 20,601.41 and 8,224.65 is: 12,306.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.29 : 20,601.41 = 8,224.65 : x
  2. Step 2: Convert to fraction form
    13,768.29/20,601.41 = 8,224.65/x
  3. Step 3: Cross multiply
    13,768.29x = 20,601.41 × 8,224.65
  4. Step 4: Simplify right side
    13,768.29x = 169,439,345.63
  5. Step 5: Solve for x
    x = 169,439,345.63/13,768.29
  6. Step 6: Final answer
    x = 12,306.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.