Home / 7,750.36-11,622.72-4,242.96

Finding the Fourth Proportional to 7,750.36, 11,622.72 and 4,242.96

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Solution

The fourth proportional to 7,750.36, 11,622.72 and 4,242.96 is: 6,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.36 : 11,622.72 = 4,242.96 : x
  2. Step 2: Convert to fraction form
    7,750.36/11,622.72 = 4,242.96/x
  3. Step 3: Cross multiply
    7,750.36x = 11,622.72 × 4,242.96
  4. Step 4: Simplify right side
    7,750.36x = 49,314,736.05
  5. Step 5: Solve for x
    x = 49,314,736.05/7,750.36
  6. Step 6: Final answer
    x = 6,362.90

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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.