Home / 10,028.85-13,840.32-5,553.09

Finding the Fourth Proportional to 10,028.85, 13,840.32 and 5,553.09

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Solution

The fourth proportional to 10,028.85, 13,840.32 and 5,553.09 is: 7,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.85 : 13,840.32 = 5,553.09 : x
  2. Step 2: Convert to fraction form
    10,028.85/13,840.32 = 5,553.09/x
  3. Step 3: Cross multiply
    10,028.85x = 13,840.32 × 5,553.09
  4. Step 4: Simplify right side
    10,028.85x = 76,856,532.18
  5. Step 5: Solve for x
    x = 76,856,532.18/10,028.85
  6. Step 6: Final answer
    x = 7,663.55

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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.