Home / 7,420.77-11,174.82-5,355.27

Finding the Fourth Proportional to 7,420.77, 11,174.82 and 5,355.27

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Solution

The fourth proportional to 7,420.77, 11,174.82 and 5,355.27 is: 8,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.77 : 11,174.82 = 5,355.27 : x
  2. Step 2: Convert to fraction form
    7,420.77/11,174.82 = 5,355.27/x
  3. Step 3: Cross multiply
    7,420.77x = 11,174.82 × 5,355.27
  4. Step 4: Simplify right side
    7,420.77x = 59,844,178.30
  5. Step 5: Solve for x
    x = 59,844,178.30/7,420.77
  6. Step 6: Final answer
    x = 8,064.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.