Home / 6,279.09-9,418.53-5,107.62

Finding the Fourth Proportional to 6,279.09, 9,418.53 and 5,107.62

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Solution

The fourth proportional to 6,279.09, 9,418.53 and 5,107.62 is: 7,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.09 : 9,418.53 = 5,107.62 : x
  2. Step 2: Convert to fraction form
    6,279.09/9,418.53 = 5,107.62/x
  3. Step 3: Cross multiply
    6,279.09x = 9,418.53 × 5,107.62
  4. Step 4: Simplify right side
    6,279.09x = 48,106,272.20
  5. Step 5: Solve for x
    x = 48,106,272.20/6,279.09
  6. Step 6: Final answer
    x = 7,661.34

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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.