Home / 10,945.86-15,105.87-6,231.66

Finding the Fourth Proportional to 10,945.86, 15,105.87 and 6,231.66

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Solution

The fourth proportional to 10,945.86, 15,105.87 and 6,231.66 is: 8,600.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.86 : 15,105.87 = 6,231.66 : x
  2. Step 2: Convert to fraction form
    10,945.86/15,105.87 = 6,231.66/x
  3. Step 3: Cross multiply
    10,945.86x = 15,105.87 × 6,231.66
  4. Step 4: Simplify right side
    10,945.86x = 94,134,645.84
  5. Step 5: Solve for x
    x = 94,134,645.84/10,945.86
  6. Step 6: Final answer
    x = 8,600.02

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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.