Home / 12,393.72-18,588.38-5,369.80

Finding the Fourth Proportional to 12,393.72, 18,588.38 and 5,369.80

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Solution

The fourth proportional to 12,393.72, 18,588.38 and 5,369.80 is: 8,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.72 : 18,588.38 = 5,369.80 : x
  2. Step 2: Convert to fraction form
    12,393.72/18,588.38 = 5,369.80/x
  3. Step 3: Cross multiply
    12,393.72x = 18,588.38 × 5,369.80
  4. Step 4: Simplify right side
    12,393.72x = 99,815,882.92
  5. Step 5: Solve for x
    x = 99,815,882.92/12,393.72
  6. Step 6: Final answer
    x = 8,053.75

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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.