Home / 13,709.91-20,548.38-4,934.57

Finding the Fourth Proportional to 13,709.91, 20,548.38 and 4,934.57

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Solution

The fourth proportional to 13,709.91, 20,548.38 and 4,934.57 is: 7,395.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.91 : 20,548.38 = 4,934.57 : x
  2. Step 2: Convert to fraction form
    13,709.91/20,548.38 = 4,934.57/x
  3. Step 3: Cross multiply
    13,709.91x = 20,548.38 × 4,934.57
  4. Step 4: Simplify right side
    13,709.91x = 101,397,450.84
  5. Step 5: Solve for x
    x = 101,397,450.84/13,709.91
  6. Step 6: Final answer
    x = 7,395.92

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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.