Home / 13,724.63-18,940.42-8,947.65

Finding the Fourth Proportional to 13,724.63, 18,940.42 and 8,947.65

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Solution

The fourth proportional to 13,724.63, 18,940.42 and 8,947.65 is: 12,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.63 : 18,940.42 = 8,947.65 : x
  2. Step 2: Convert to fraction form
    13,724.63/18,940.42 = 8,947.65/x
  3. Step 3: Cross multiply
    13,724.63x = 18,940.42 × 8,947.65
  4. Step 4: Simplify right side
    13,724.63x = 169,472,249.01
  5. Step 5: Solve for x
    x = 169,472,249.01/13,724.63
  6. Step 6: Final answer
    x = 12,348.04

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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.