Home / 13,451.04-20,163.60-6,880.32

Finding the Fourth Proportional to 13,451.04, 20,163.60 and 6,880.32

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Solution

The fourth proportional to 13,451.04, 20,163.60 and 6,880.32 is: 10,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.04 : 20,163.60 = 6,880.32 : x
  2. Step 2: Convert to fraction form
    13,451.04/20,163.60 = 6,880.32/x
  3. Step 3: Cross multiply
    13,451.04x = 20,163.60 × 6,880.32
  4. Step 4: Simplify right side
    13,451.04x = 138,732,020.35
  5. Step 5: Solve for x
    x = 138,732,020.35/13,451.04
  6. Step 6: Final answer
    x = 10,313.85

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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.