Home / 12,381.24-18,575.12-6,141

Finding the Fourth Proportional to 12,381.24, 18,575.12 and 6,141

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Solution

The fourth proportional to 12,381.24, 18,575.12 and 6,141 is: 9,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.24 : 18,575.12 = 6,141 : x
  2. Step 2: Convert to fraction form
    12,381.24/18,575.12 = 6,141/x
  3. Step 3: Cross multiply
    12,381.24x = 18,575.12 × 6,141
  4. Step 4: Simplify right side
    12,381.24x = 114,069,811.92
  5. Step 5: Solve for x
    x = 114,069,811.92/12,381.24
  6. Step 6: Final answer
    x = 9,213.12

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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.