Home / 12,544.32-18,816.96-6,381.12

Finding the Fourth Proportional to 12,544.32, 18,816.96 and 6,381.12

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Solution

The fourth proportional to 12,544.32, 18,816.96 and 6,381.12 is: 9,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.32 : 18,816.96 = 6,381.12 : x
  2. Step 2: Convert to fraction form
    12,544.32/18,816.96 = 6,381.12/x
  3. Step 3: Cross multiply
    12,544.32x = 18,816.96 × 6,381.12
  4. Step 4: Simplify right side
    12,544.32x = 120,073,279.80
  5. Step 5: Solve for x
    x = 120,073,279.80/12,544.32
  6. Step 6: Final answer
    x = 9,571.92

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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.