Home / 13,580.46-20,370.53-3,719.73

Finding the Fourth Proportional to 13,580.46, 20,370.53 and 3,719.73

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Solution

The fourth proportional to 13,580.46, 20,370.53 and 3,719.73 is: 5,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.46 : 20,370.53 = 3,719.73 : x
  2. Step 2: Convert to fraction form
    13,580.46/20,370.53 = 3,719.73/x
  3. Step 3: Cross multiply
    13,580.46x = 20,370.53 × 3,719.73
  4. Step 4: Simplify right side
    13,580.46x = 75,772,852.96
  5. Step 5: Solve for x
    x = 75,772,852.96/13,580.46
  6. Step 6: Final answer
    x = 5,579.55

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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.