Home / 12,321.64-18,481.11-4,924.18

Finding the Fourth Proportional to 12,321.64, 18,481.11 and 4,924.18

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Solution

The fourth proportional to 12,321.64, 18,481.11 and 4,924.18 is: 7,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.64 : 18,481.11 = 4,924.18 : x
  2. Step 2: Convert to fraction form
    12,321.64/18,481.11 = 4,924.18/x
  3. Step 3: Cross multiply
    12,321.64x = 18,481.11 × 4,924.18
  4. Step 4: Simplify right side
    12,321.64x = 91,004,312.24
  5. Step 5: Solve for x
    x = 91,004,312.24/12,321.64
  6. Step 6: Final answer
    x = 7,385.73

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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.