Home / 12,165.63-18,247.47-3,845.88

Finding the Fourth Proportional to 12,165.63, 18,247.47 and 3,845.88

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Solution

The fourth proportional to 12,165.63, 18,247.47 and 3,845.88 is: 5,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.63 : 18,247.47 = 3,845.88 : x
  2. Step 2: Convert to fraction form
    12,165.63/18,247.47 = 3,845.88/x
  3. Step 3: Cross multiply
    12,165.63x = 18,247.47 × 3,845.88
  4. Step 4: Simplify right side
    12,165.63x = 70,177,579.92
  5. Step 5: Solve for x
    x = 70,177,579.92/12,165.63
  6. Step 6: Final answer
    x = 5,768.51

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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.