Home / 12,312.22-18,471.24-3,992.24

Finding the Fourth Proportional to 12,312.22, 18,471.24 and 3,992.24

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Solution

The fourth proportional to 12,312.22, 18,471.24 and 3,992.24 is: 5,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.22 : 18,471.24 = 3,992.24 : x
  2. Step 2: Convert to fraction form
    12,312.22/18,471.24 = 3,992.24/x
  3. Step 3: Cross multiply
    12,312.22x = 18,471.24 × 3,992.24
  4. Step 4: Simplify right side
    12,312.22x = 73,741,623.18
  5. Step 5: Solve for x
    x = 73,741,623.18/12,312.22
  6. Step 6: Final answer
    x = 5,989.30

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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.