Home / 7,418.25-11,126.16-5,220.32

Finding the Fourth Proportional to 7,418.25, 11,126.16 and 5,220.32

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Solution

The fourth proportional to 7,418.25, 11,126.16 and 5,220.32 is: 7,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.25 : 11,126.16 = 5,220.32 : x
  2. Step 2: Convert to fraction form
    7,418.25/11,126.16 = 5,220.32/x
  3. Step 3: Cross multiply
    7,418.25x = 11,126.16 × 5,220.32
  4. Step 4: Simplify right side
    7,418.25x = 58,082,059.94
  5. Step 5: Solve for x
    x = 58,082,059.94/7,418.25
  6. Step 6: Final answer
    x = 7,829.62

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1.5x scale

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.