Home / 8,051.05-11,107.83-5,220.63

Finding the Fourth Proportional to 8,051.05, 11,107.83 and 5,220.63

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Solution

The fourth proportional to 8,051.05, 11,107.83 and 5,220.63 is: 7,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.05 : 11,107.83 = 5,220.63 : x
  2. Step 2: Convert to fraction form
    8,051.05/11,107.83 = 5,220.63/x
  3. Step 3: Cross multiply
    8,051.05x = 11,107.83 × 5,220.63
  4. Step 4: Simplify right side
    8,051.05x = 57,989,858.87
  5. Step 5: Solve for x
    x = 57,989,858.87/8,051.05
  6. Step 6: Final answer
    x = 7,202.77

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1.5x scale

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.