Home / 13,211.46-18,233.67-8,177.29

Finding the Fourth Proportional to 13,211.46, 18,233.67 and 8,177.29

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Solution

The fourth proportional to 13,211.46, 18,233.67 and 8,177.29 is: 11,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.46 : 18,233.67 = 8,177.29 : x
  2. Step 2: Convert to fraction form
    13,211.46/18,233.67 = 8,177.29/x
  3. Step 3: Cross multiply
    13,211.46x = 18,233.67 × 8,177.29
  4. Step 4: Simplify right side
    13,211.46x = 149,102,007.35
  5. Step 5: Solve for x
    x = 149,102,007.35/13,211.46
  6. Step 6: Final answer
    x = 11,285.81

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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.