Home / 10,917.63-16,382.34-4,343.90

Finding the Fourth Proportional to 10,917.63, 16,382.34 and 4,343.90

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Solution

The fourth proportional to 10,917.63, 16,382.34 and 4,343.90 is: 6,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.63 : 16,382.34 = 4,343.90 : x
  2. Step 2: Convert to fraction form
    10,917.63/16,382.34 = 4,343.90/x
  3. Step 3: Cross multiply
    10,917.63x = 16,382.34 × 4,343.90
  4. Step 4: Simplify right side
    10,917.63x = 71,163,164.81
  5. Step 5: Solve for x
    x = 71,163,164.81/10,917.63
  6. Step 6: Final answer
    x = 6,518.19

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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.