Home / 12,211.37-18,302.85-5,623.71

Finding the Fourth Proportional to 12,211.37, 18,302.85 and 5,623.71

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Solution

The fourth proportional to 12,211.37, 18,302.85 and 5,623.71 is: 8,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.37 : 18,302.85 = 5,623.71 : x
  2. Step 2: Convert to fraction form
    12,211.37/18,302.85 = 5,623.71/x
  3. Step 3: Cross multiply
    12,211.37x = 18,302.85 × 5,623.71
  4. Step 4: Simplify right side
    12,211.37x = 102,929,920.57
  5. Step 5: Solve for x
    x = 102,929,920.57/12,211.37
  6. Step 6: Final answer
    x = 8,429.03

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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.