Home / 12,391.72-18,588.43-4,996.24

Finding the Fourth Proportional to 12,391.72, 18,588.43 and 4,996.24

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Solution

The fourth proportional to 12,391.72, 18,588.43 and 4,996.24 is: 7,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.72 : 18,588.43 = 4,996.24 : x
  2. Step 2: Convert to fraction form
    12,391.72/18,588.43 = 4,996.24/x
  3. Step 3: Cross multiply
    12,391.72x = 18,588.43 × 4,996.24
  4. Step 4: Simplify right side
    12,391.72x = 92,872,257.50
  5. Step 5: Solve for x
    x = 92,872,257.50/12,391.72
  6. Step 6: Final answer
    x = 7,494.71

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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.