Home / 13,708.92-20,563.32-3,320.64

Finding the Fourth Proportional to 13,708.92, 20,563.32 and 3,320.64

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Solution

The fourth proportional to 13,708.92, 20,563.32 and 3,320.64 is: 4,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.92 : 20,563.32 = 3,320.64 : x
  2. Step 2: Convert to fraction form
    13,708.92/20,563.32 = 3,320.64/x
  3. Step 3: Cross multiply
    13,708.92x = 20,563.32 × 3,320.64
  4. Step 4: Simplify right side
    13,708.92x = 68,283,382.92
  5. Step 5: Solve for x
    x = 68,283,382.92/13,708.92
  6. Step 6: Final answer
    x = 4,980.95

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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.