Home / 6,279.09-9,405.87-5,039.79

Finding the Fourth Proportional to 6,279.09, 9,405.87 and 5,039.79

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Solution

The fourth proportional to 6,279.09, 9,405.87 and 5,039.79 is: 7,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.09 : 9,405.87 = 5,039.79 : x
  2. Step 2: Convert to fraction form
    6,279.09/9,405.87 = 5,039.79/x
  3. Step 3: Cross multiply
    6,279.09x = 9,405.87 × 5,039.79
  4. Step 4: Simplify right side
    6,279.09x = 47,403,562.54
  5. Step 5: Solve for x
    x = 47,403,562.54/6,279.09
  6. Step 6: Final answer
    x = 7,549.44

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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.