Home / 11,620.72-16,035.94-6,315.50

Finding the Fourth Proportional to 11,620.72, 16,035.94 and 6,315.50

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Solution

The fourth proportional to 11,620.72, 16,035.94 and 6,315.50 is: 8,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.72 : 16,035.94 = 6,315.50 : x
  2. Step 2: Convert to fraction form
    11,620.72/16,035.94 = 6,315.50/x
  3. Step 3: Cross multiply
    11,620.72x = 16,035.94 × 6,315.50
  4. Step 4: Simplify right side
    11,620.72x = 101,274,947.49
  5. Step 5: Solve for x
    x = 101,274,947.49/11,620.72
  6. Step 6: Final answer
    x = 8,715.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.