Home / 7,749.37-10,694.12-4,212.61

Finding the Fourth Proportional to 7,749.37, 10,694.12 and 4,212.61

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Solution

The fourth proportional to 7,749.37, 10,694.12 and 4,212.61 is: 5,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.37 : 10,694.12 = 4,212.61 : x
  2. Step 2: Convert to fraction form
    7,749.37/10,694.12 = 4,212.61/x
  3. Step 3: Cross multiply
    7,749.37x = 10,694.12 × 4,212.61
  4. Step 4: Simplify right side
    7,749.37x = 45,050,156.85
  5. Step 5: Solve for x
    x = 45,050,156.85/7,749.37
  6. Step 6: Final answer
    x = 5,813.40

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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.