Home / 12,225.52-18,338.24-2,991.52

Finding the Fourth Proportional to 12,225.52, 18,338.24 and 2,991.52

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Solution

The fourth proportional to 12,225.52, 18,338.24 and 2,991.52 is: 4,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.52 : 18,338.24 = 2,991.52 : x
  2. Step 2: Convert to fraction form
    12,225.52/18,338.24 = 2,991.52/x
  3. Step 3: Cross multiply
    12,225.52x = 18,338.24 × 2,991.52
  4. Step 4: Simplify right side
    12,225.52x = 54,859,211.72
  5. Step 5: Solve for x
    x = 54,859,211.72/12,225.52
  6. Step 6: Final answer
    x = 4,487.27

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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.