Home / 13,977.28-20,965.92-6,579.28

Finding the Fourth Proportional to 13,977.28, 20,965.92 and 6,579.28

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Solution

The fourth proportional to 13,977.28, 20,965.92 and 6,579.28 is: 9,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.28 : 20,965.92 = 6,579.28 : x
  2. Step 2: Convert to fraction form
    13,977.28/20,965.92 = 6,579.28/x
  3. Step 3: Cross multiply
    13,977.28x = 20,965.92 × 6,579.28
  4. Step 4: Simplify right side
    13,977.28x = 137,940,658.14
  5. Step 5: Solve for x
    x = 137,940,658.14/13,977.28
  6. Step 6: Final answer
    x = 9,868.92

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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.