Home / 13,708.92-20,560.68-8,763.60

Finding the Fourth Proportional to 13,708.92, 20,560.68 and 8,763.60

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Solution

The fourth proportional to 13,708.92, 20,560.68 and 8,763.60 is: 13,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.92 : 20,560.68 = 8,763.60 : x
  2. Step 2: Convert to fraction form
    13,708.92/20,560.68 = 8,763.60/x
  3. Step 3: Cross multiply
    13,708.92x = 20,560.68 × 8,763.60
  4. Step 4: Simplify right side
    13,708.92x = 180,185,575.25
  5. Step 5: Solve for x
    x = 180,185,575.25/13,708.92
  6. Step 6: Final answer
    x = 13,143.67

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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.