Home / 10,780.64-16,163.18-3,381.12

Finding the Fourth Proportional to 10,780.64, 16,163.18 and 3,381.12

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Solution

The fourth proportional to 10,780.64, 16,163.18 and 3,381.12 is: 5,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.64 : 16,163.18 = 3,381.12 : x
  2. Step 2: Convert to fraction form
    10,780.64/16,163.18 = 3,381.12/x
  3. Step 3: Cross multiply
    10,780.64x = 16,163.18 × 3,381.12
  4. Step 4: Simplify right side
    10,780.64x = 54,649,651.16
  5. Step 5: Solve for x
    x = 54,649,651.16/10,780.64
  6. Step 6: Final answer
    x = 5,069.24

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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.