Home / 12,262.20-18,378.90-5,674.47

Finding the Fourth Proportional to 12,262.20, 18,378.90 and 5,674.47

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Solution

The fourth proportional to 12,262.20, 18,378.90 and 5,674.47 is: 8,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.20 : 18,378.90 = 5,674.47 : x
  2. Step 2: Convert to fraction form
    12,262.20/18,378.90 = 5,674.47/x
  3. Step 3: Cross multiply
    12,262.20x = 18,378.90 × 5,674.47
  4. Step 4: Simplify right side
    12,262.20x = 104,290,516.68
  5. Step 5: Solve for x
    x = 104,290,516.68/12,262.20
  6. Step 6: Final answer
    x = 8,505.04

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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.