Home / 12,256.92-18,386.46-3,933.90

Finding the Fourth Proportional to 12,256.92, 18,386.46 and 3,933.90

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Solution

The fourth proportional to 12,256.92, 18,386.46 and 3,933.90 is: 5,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.92 : 18,386.46 = 3,933.90 : x
  2. Step 2: Convert to fraction form
    12,256.92/18,386.46 = 3,933.90/x
  3. Step 3: Cross multiply
    12,256.92x = 18,386.46 × 3,933.90
  4. Step 4: Simplify right side
    12,256.92x = 72,330,494.99
  5. Step 5: Solve for x
    x = 72,330,494.99/12,256.92
  6. Step 6: Final answer
    x = 5,901.20

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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.