Home / 7,749.92-10,695.12-4,213.36

Finding the Fourth Proportional to 7,749.92, 10,695.12 and 4,213.36

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Solution

The fourth proportional to 7,749.92, 10,695.12 and 4,213.36 is: 5,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.92 : 10,695.12 = 4,213.36 : x
  2. Step 2: Convert to fraction form
    7,749.92/10,695.12 = 4,213.36/x
  3. Step 3: Cross multiply
    7,749.92x = 10,695.12 × 4,213.36
  4. Step 4: Simplify right side
    7,749.92x = 45,062,390.80
  5. Step 5: Solve for x
    x = 45,062,390.80/7,749.92
  6. Step 6: Final answer
    x = 5,814.56

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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.