Home / 10,104.92-15,213.60-8,880.20

Finding the Fourth Proportional to 10,104.92, 15,213.60 and 8,880.20

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Solution

The fourth proportional to 10,104.92, 15,213.60 and 8,880.20 is: 13,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.92 : 15,213.60 = 8,880.20 : x
  2. Step 2: Convert to fraction form
    10,104.92/15,213.60 = 8,880.20/x
  3. Step 3: Cross multiply
    10,104.92x = 15,213.60 × 8,880.20
  4. Step 4: Simplify right side
    10,104.92x = 135,099,810.72
  5. Step 5: Solve for x
    x = 135,099,810.72/10,104.92
  6. Step 6: Final answer
    x = 13,369.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.