Home / 10,919.51-16,382.90-4,343.93

Finding the Fourth Proportional to 10,919.51, 16,382.90 and 4,343.93

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Solution

The fourth proportional to 10,919.51, 16,382.90 and 4,343.93 is: 6,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.51 : 16,382.90 = 4,343.93 : x
  2. Step 2: Convert to fraction form
    10,919.51/16,382.90 = 4,343.93/x
  3. Step 3: Cross multiply
    10,919.51x = 16,382.90 × 4,343.93
  4. Step 4: Simplify right side
    10,919.51x = 71,166,099.74
  5. Step 5: Solve for x
    x = 71,166,099.74/10,919.51
  6. Step 6: Final answer
    x = 6,517.34

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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.