Home / 13,566.87-20,350.50-4,206.78

Finding the Fourth Proportional to 13,566.87, 20,350.50 and 4,206.78

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Solution

The fourth proportional to 13,566.87, 20,350.50 and 4,206.78 is: 6,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.87 : 20,350.50 = 4,206.78 : x
  2. Step 2: Convert to fraction form
    13,566.87/20,350.50 = 4,206.78/x
  3. Step 3: Cross multiply
    13,566.87x = 20,350.50 × 4,206.78
  4. Step 4: Simplify right side
    13,566.87x = 85,610,076.39
  5. Step 5: Solve for x
    x = 85,610,076.39/13,566.87
  6. Step 6: Final answer
    x = 6,310.23

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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.