Home / 10,512.05-15,768.27-2,720.66

Finding the Fourth Proportional to 10,512.05, 15,768.27 and 2,720.66

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Solution

The fourth proportional to 10,512.05, 15,768.27 and 2,720.66 is: 4,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.05 : 15,768.27 = 2,720.66 : x
  2. Step 2: Convert to fraction form
    10,512.05/15,768.27 = 2,720.66/x
  3. Step 3: Cross multiply
    10,512.05x = 15,768.27 × 2,720.66
  4. Step 4: Simplify right side
    10,512.05x = 42,900,022.62
  5. Step 5: Solve for x
    x = 42,900,022.62/10,512.05
  6. Step 6: Final answer
    x = 4,081.03

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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.