Home / 13,579.97-20,363.01-5,680.35

Finding the Fourth Proportional to 13,579.97, 20,363.01 and 5,680.35

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Solution

The fourth proportional to 13,579.97, 20,363.01 and 5,680.35 is: 8,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.97 : 20,363.01 = 5,680.35 : x
  2. Step 2: Convert to fraction form
    13,579.97/20,363.01 = 5,680.35/x
  3. Step 3: Cross multiply
    13,579.97x = 20,363.01 × 5,680.35
  4. Step 4: Simplify right side
    13,579.97x = 115,669,023.85
  5. Step 5: Solve for x
    x = 115,669,023.85/13,579.97
  6. Step 6: Final answer
    x = 8,517.62

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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.