Home / 12,211.20-18,297.60-10,252.80

Finding the Fourth Proportional to 12,211.20, 18,297.60 and 10,252.80

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Solution

The fourth proportional to 12,211.20, 18,297.60 and 10,252.80 is: 15,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.20 : 18,297.60 = 10,252.80 : x
  2. Step 2: Convert to fraction form
    12,211.20/18,297.60 = 10,252.80/x
  3. Step 3: Cross multiply
    12,211.20x = 18,297.60 × 10,252.80
  4. Step 4: Simplify right side
    12,211.20x = 187,601,633.28
  5. Step 5: Solve for x
    x = 187,601,633.28/12,211.20
  6. Step 6: Final answer
    x = 15,363.08

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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.