Home / 10,919.27-16,382.18-4,679.84

Finding the Fourth Proportional to 10,919.27, 16,382.18 and 4,679.84

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Solution

The fourth proportional to 10,919.27, 16,382.18 and 4,679.84 is: 7,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.27 : 16,382.18 = 4,679.84 : x
  2. Step 2: Convert to fraction form
    10,919.27/16,382.18 = 4,679.84/x
  3. Step 3: Cross multiply
    10,919.27x = 16,382.18 × 4,679.84
  4. Step 4: Simplify right side
    10,919.27x = 76,666,033.91
  5. Step 5: Solve for x
    x = 76,666,033.91/10,919.27
  6. Step 6: Final answer
    x = 7,021.17

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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.