Home / 10,540.86-15,811.30-2,749.66

Finding the Fourth Proportional to 10,540.86, 15,811.30 and 2,749.66

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Solution

The fourth proportional to 10,540.86, 15,811.30 and 2,749.66 is: 4,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.86 : 15,811.30 = 2,749.66 : x
  2. Step 2: Convert to fraction form
    10,540.86/15,811.30 = 2,749.66/x
  3. Step 3: Cross multiply
    10,540.86x = 15,811.30 × 2,749.66
  4. Step 4: Simplify right side
    10,540.86x = 43,475,699.16
  5. Step 5: Solve for x
    x = 43,475,699.16/10,540.86
  6. Step 6: Final answer
    x = 4,124.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.