Home / 10,919.79-16,382.70-4,350.60

Finding the Fourth Proportional to 10,919.79, 16,382.70 and 4,350.60

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Solution

The fourth proportional to 10,919.79, 16,382.70 and 4,350.60 is: 6,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.79 : 16,382.70 = 4,350.60 : x
  2. Step 2: Convert to fraction form
    10,919.79/16,382.70 = 4,350.60/x
  3. Step 3: Cross multiply
    10,919.79x = 16,382.70 × 4,350.60
  4. Step 4: Simplify right side
    10,919.79x = 71,274,574.62
  5. Step 5: Solve for x
    x = 71,274,574.62/10,919.79
  6. Step 6: Final answer
    x = 6,527.10

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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.