Home / 12,309.44-18,436.62-5,725.76

Finding the Fourth Proportional to 12,309.44, 18,436.62 and 5,725.76

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Solution

The fourth proportional to 12,309.44, 18,436.62 and 5,725.76 is: 8,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309.44 : 18,436.62 = 5,725.76 : x
  2. Step 2: Convert to fraction form
    12,309.44/18,436.62 = 5,725.76/x
  3. Step 3: Cross multiply
    12,309.44x = 18,436.62 × 5,725.76
  4. Step 4: Simplify right side
    12,309.44x = 105,563,661.33
  5. Step 5: Solve for x
    x = 105,563,661.33/12,309.44
  6. Step 6: Final answer
    x = 8,575.83

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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.