Home / 7,867.72-10,857.37-4,330.86

Finding the Fourth Proportional to 7,867.72, 10,857.37 and 4,330.86

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Solution

The fourth proportional to 7,867.72, 10,857.37 and 4,330.86 is: 5,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.72 : 10,857.37 = 4,330.86 : x
  2. Step 2: Convert to fraction form
    7,867.72/10,857.37 = 4,330.86/x
  3. Step 3: Cross multiply
    7,867.72x = 10,857.37 × 4,330.86
  4. Step 4: Simplify right side
    7,867.72x = 47,021,749.44
  5. Step 5: Solve for x
    x = 47,021,749.44/7,867.72
  6. Step 6: Final answer
    x = 5,976.54

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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.