Home / 13,579.79-20,364.68-4,692.87

Finding the Fourth Proportional to 13,579.79, 20,364.68 and 4,692.87

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Solution

The fourth proportional to 13,579.79, 20,364.68 and 4,692.87 is: 7,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.79 : 20,364.68 = 4,692.87 : x
  2. Step 2: Convert to fraction form
    13,579.79/20,364.68 = 4,692.87/x
  3. Step 3: Cross multiply
    13,579.79x = 20,364.68 × 4,692.87
  4. Step 4: Simplify right side
    13,579.79x = 95,568,807.56
  5. Step 5: Solve for x
    x = 95,568,807.56/13,579.79
  6. Step 6: Final answer
    x = 7,037.58

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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.