Home / 12,309.18-18,469.77-7,627.93

Finding the Fourth Proportional to 12,309.18, 18,469.77 and 7,627.93

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Solution

The fourth proportional to 12,309.18, 18,469.77 and 7,627.93 is: 11,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.18 : 18,469.77 = 7,627.93 : x
  2. Step 2: Convert to fraction form
    12,309.18/18,469.77 = 7,627.93/x
  3. Step 3: Cross multiply
    12,309.18x = 18,469.77 × 7,627.93
  4. Step 4: Simplify right side
    12,309.18x = 140,886,112.68
  5. Step 5: Solve for x
    x = 140,886,112.68/12,309.18
  6. Step 6: Final answer
    x = 11,445.61

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1.5x scale

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.