Home / 13,579.50-20,369.37-5,371.50

Finding the Fourth Proportional to 13,579.50, 20,369.37 and 5,371.50

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Solution

The fourth proportional to 13,579.50, 20,369.37 and 5,371.50 is: 8,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.50 : 20,369.37 = 5,371.50 : x
  2. Step 2: Convert to fraction form
    13,579.50/20,369.37 = 5,371.50/x
  3. Step 3: Cross multiply
    13,579.50x = 20,369.37 × 5,371.50
  4. Step 4: Simplify right side
    13,579.50x = 109,414,070.96
  5. Step 5: Solve for x
    x = 109,414,070.96/13,579.50
  6. Step 6: Final answer
    x = 8,057.30

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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.