Home / 10,512.57-15,772.95-3,117.09

Finding the Fourth Proportional to 10,512.57, 15,772.95 and 3,117.09

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Solution

The fourth proportional to 10,512.57, 15,772.95 and 3,117.09 is: 4,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.57 : 15,772.95 = 3,117.09 : x
  2. Step 2: Convert to fraction form
    10,512.57/15,772.95 = 3,117.09/x
  3. Step 3: Cross multiply
    10,512.57x = 15,772.95 × 3,117.09
  4. Step 4: Simplify right side
    10,512.57x = 49,165,704.72
  5. Step 5: Solve for x
    x = 49,165,704.72/10,512.57
  6. Step 6: Final answer
    x = 4,676.85

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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.