Home / 18,835.86-28,260.66-7,149

Finding the Fourth Proportional to 18,835.86, 28,260.66 and 7,149

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Solution

The fourth proportional to 18,835.86, 28,260.66 and 7,149 is: 10,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.86 : 28,260.66 = 7,149 : x
  2. Step 2: Convert to fraction form
    18,835.86/28,260.66 = 7,149/x
  3. Step 3: Cross multiply
    18,835.86x = 28,260.66 × 7,149
  4. Step 4: Simplify right side
    18,835.86x = 202,035,458.34
  5. Step 5: Solve for x
    x = 202,035,458.34/18,835.86
  6. Step 6: Final answer
    x = 10,726.11

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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.