Home / 12,381.62-18,573.06-3,617.24

Finding the Fourth Proportional to 12,381.62, 18,573.06 and 3,617.24

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Solution

The fourth proportional to 12,381.62, 18,573.06 and 3,617.24 is: 5,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.62 : 18,573.06 = 3,617.24 : x
  2. Step 2: Convert to fraction form
    12,381.62/18,573.06 = 3,617.24/x
  3. Step 3: Cross multiply
    12,381.62x = 18,573.06 × 3,617.24
  4. Step 4: Simplify right side
    12,381.62x = 67,183,215.55
  5. Step 5: Solve for x
    x = 67,183,215.55/12,381.62
  6. Step 6: Final answer
    x = 5,426.04

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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.