Home / 10,919.44-16,384.50-5,080.12

Finding the Fourth Proportional to 10,919.44, 16,384.50 and 5,080.12

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Solution

The fourth proportional to 10,919.44, 16,384.50 and 5,080.12 is: 7,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.44 : 16,384.50 = 5,080.12 : x
  2. Step 2: Convert to fraction form
    10,919.44/16,384.50 = 5,080.12/x
  3. Step 3: Cross multiply
    10,919.44x = 16,384.50 × 5,080.12
  4. Step 4: Simplify right side
    10,919.44x = 83,235,226.14
  5. Step 5: Solve for x
    x = 83,235,226.14/10,919.44
  6. Step 6: Final answer
    x = 7,622.66

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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.