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Finding the Fourth Proportional to 12,299.49, 18,449.24 and 3,065.49

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Solution

The fourth proportional to 12,299.49, 18,449.24 and 3,065.49 is: 4,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.49 : 18,449.24 = 3,065.49 : x
  2. Step 2: Convert to fraction form
    12,299.49/18,449.24 = 3,065.49/x
  3. Step 3: Cross multiply
    12,299.49x = 18,449.24 × 3,065.49
  4. Step 4: Simplify right side
    12,299.49x = 56,555,945.40
  5. Step 5: Solve for x
    x = 56,555,945.40/12,299.49
  6. Step 6: Final answer
    x = 4,598.24

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Similar ratio
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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.