Home / 18,129.64-27,169.16-9,791.69

Finding the Fourth Proportional to 18,129.64, 27,169.16 and 9,791.69

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Solution

The fourth proportional to 18,129.64, 27,169.16 and 9,791.69 is: 14,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.64 : 27,169.16 = 9,791.69 : x
  2. Step 2: Convert to fraction form
    18,129.64/27,169.16 = 9,791.69/x
  3. Step 3: Cross multiply
    18,129.64x = 27,169.16 × 9,791.69
  4. Step 4: Simplify right side
    18,129.64x = 266,031,943.32
  5. Step 5: Solve for x
    x = 266,031,943.32/18,129.64
  6. Step 6: Final answer
    x = 14,673.87

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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.