Home / 13,949.91-20,907.06-6,538.04

Finding the Fourth Proportional to 13,949.91, 20,907.06 and 6,538.04

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Solution

The fourth proportional to 13,949.91, 20,907.06 and 6,538.04 is: 9,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.91 : 20,907.06 = 6,538.04 : x
  2. Step 2: Convert to fraction form
    13,949.91/20,907.06 = 6,538.04/x
  3. Step 3: Cross multiply
    13,949.91x = 20,907.06 × 6,538.04
  4. Step 4: Simplify right side
    13,949.91x = 136,691,143.91
  5. Step 5: Solve for x
    x = 136,691,143.91/13,949.91
  6. Step 6: Final answer
    x = 9,798.71

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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.