Home / 7,743.92-10,688.30-5,091.57

Finding the Fourth Proportional to 7,743.92, 10,688.30 and 5,091.57

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Solution

The fourth proportional to 7,743.92, 10,688.30 and 5,091.57 is: 7,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.92 : 10,688.30 = 5,091.57 : x
  2. Step 2: Convert to fraction form
    7,743.92/10,688.30 = 5,091.57/x
  3. Step 3: Cross multiply
    7,743.92x = 10,688.30 × 5,091.57
  4. Step 4: Simplify right side
    7,743.92x = 54,420,221.27
  5. Step 5: Solve for x
    x = 54,420,221.27/7,743.92
  6. Step 6: Final answer
    x = 7,027.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.