Home / 13,227.10-18,230.66-12,604.26

Finding the Fourth Proportional to 13,227.10, 18,230.66 and 12,604.26

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Solution

The fourth proportional to 13,227.10, 18,230.66 and 12,604.26 is: 17,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.10 : 18,230.66 = 12,604.26 : x
  2. Step 2: Convert to fraction form
    13,227.10/18,230.66 = 12,604.26/x
  3. Step 3: Cross multiply
    13,227.10x = 18,230.66 × 12,604.26
  4. Step 4: Simplify right side
    13,227.10x = 229,783,978.61
  5. Step 5: Solve for x
    x = 229,783,978.61/13,227.10
  6. Step 6: Final answer
    x = 17,372.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.