Home / 12,381.32-18,568.22-4,482.87

Finding the Fourth Proportional to 12,381.32, 18,568.22 and 4,482.87

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Solution

The fourth proportional to 12,381.32, 18,568.22 and 4,482.87 is: 6,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.32 : 18,568.22 = 4,482.87 : x
  2. Step 2: Convert to fraction form
    12,381.32/18,568.22 = 4,482.87/x
  3. Step 3: Cross multiply
    12,381.32x = 18,568.22 × 4,482.87
  4. Step 4: Simplify right side
    12,381.32x = 83,238,893.98
  5. Step 5: Solve for x
    x = 83,238,893.98/12,381.32
  6. Step 6: Final answer
    x = 6,722.94

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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.