Home / 10,512.97-15,769.51-3,117.49

Finding the Fourth Proportional to 10,512.97, 15,769.51 and 3,117.49

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Solution

The fourth proportional to 10,512.97, 15,769.51 and 3,117.49 is: 4,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.97 : 15,769.51 = 3,117.49 : x
  2. Step 2: Convert to fraction form
    10,512.97/15,769.51 = 3,117.49/x
  3. Step 3: Cross multiply
    10,512.97x = 15,769.51 × 3,117.49
  4. Step 4: Simplify right side
    10,512.97x = 49,161,289.73
  5. Step 5: Solve for x
    x = 49,161,289.73/10,512.97
  6. Step 6: Final answer
    x = 4,676.25

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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.