Home / 12,076.72-18,115.09-9,725.70

Finding the Fourth Proportional to 12,076.72, 18,115.09 and 9,725.70

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Solution

The fourth proportional to 12,076.72, 18,115.09 and 9,725.70 is: 14,588.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.72 : 18,115.09 = 9,725.70 : x
  2. Step 2: Convert to fraction form
    12,076.72/18,115.09 = 9,725.70/x
  3. Step 3: Cross multiply
    12,076.72x = 18,115.09 × 9,725.70
  4. Step 4: Simplify right side
    12,076.72x = 176,181,930.81
  5. Step 5: Solve for x
    x = 176,181,930.81/12,076.72
  6. Step 6: Final answer
    x = 14,588.56

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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.