Home / 10,616.25-15,923.75-3,220.77

Finding the Fourth Proportional to 10,616.25, 15,923.75 and 3,220.77

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Solution

The fourth proportional to 10,616.25, 15,923.75 and 3,220.77 is: 4,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.25 : 15,923.75 = 3,220.77 : x
  2. Step 2: Convert to fraction form
    10,616.25/15,923.75 = 3,220.77/x
  3. Step 3: Cross multiply
    10,616.25x = 15,923.75 × 3,220.77
  4. Step 4: Simplify right side
    10,616.25x = 51,286,720.18
  5. Step 5: Solve for x
    x = 51,286,720.18/10,616.25
  6. Step 6: Final answer
    x = 4,830.96

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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.