Home / 10,917.86-16,383.96-5,990.96

Finding the Fourth Proportional to 10,917.86, 16,383.96 and 5,990.96

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Solution

The fourth proportional to 10,917.86, 16,383.96 and 5,990.96 is: 8,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.86 : 16,383.96 = 5,990.96 : x
  2. Step 2: Convert to fraction form
    10,917.86/16,383.96 = 5,990.96/x
  3. Step 3: Cross multiply
    10,917.86x = 16,383.96 × 5,990.96
  4. Step 4: Simplify right side
    10,917.86x = 98,155,649.00
  5. Step 5: Solve for x
    x = 98,155,649.00/10,917.86
  6. Step 6: Final answer
    x = 8,990.37

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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.