Home / 13,579.46-20,369.03-3,718.73

Finding the Fourth Proportional to 13,579.46, 20,369.03 and 3,718.73

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Solution

The fourth proportional to 13,579.46, 20,369.03 and 3,718.73 is: 5,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.46 : 20,369.03 = 3,718.73 : x
  2. Step 2: Convert to fraction form
    13,579.46/20,369.03 = 3,718.73/x
  3. Step 3: Cross multiply
    13,579.46x = 20,369.03 × 3,718.73
  4. Step 4: Simplify right side
    13,579.46x = 75,746,904.34
  5. Step 5: Solve for x
    x = 75,746,904.34/13,579.46
  6. Step 6: Final answer
    x = 5,578.05

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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.