Home / 7,749.32-10,694.10-4,212.60

Finding the Fourth Proportional to 7,749.32, 10,694.10 and 4,212.60

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Solution

The fourth proportional to 7,749.32, 10,694.10 and 4,212.60 is: 5,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.32 : 10,694.10 = 4,212.60 : x
  2. Step 2: Convert to fraction form
    7,749.32/10,694.10 = 4,212.60/x
  3. Step 3: Cross multiply
    7,749.32x = 10,694.10 × 4,212.60
  4. Step 4: Simplify right side
    7,749.32x = 45,049,965.66
  5. Step 5: Solve for x
    x = 45,049,965.66/7,749.32
  6. Step 6: Final answer
    x = 5,813.41

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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.