Home / 18,822.86-28,247.64-7,739.66

Finding the Fourth Proportional to 18,822.86, 28,247.64 and 7,739.66

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Solution

The fourth proportional to 18,822.86, 28,247.64 and 7,739.66 is: 11,614.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.86 : 28,247.64 = 7,739.66 : x
  2. Step 2: Convert to fraction form
    18,822.86/28,247.64 = 7,739.66/x
  3. Step 3: Cross multiply
    18,822.86x = 28,247.64 × 7,739.66
  4. Step 4: Simplify right side
    18,822.86x = 218,627,129.40
  5. Step 5: Solve for x
    x = 218,627,129.40/18,822.86
  6. Step 6: Final answer
    x = 11,614.98

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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.