Home / 7,619.27-10,491.22-6,669.74

Finding the Fourth Proportional to 7,619.27, 10,491.22 and 6,669.74

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Solution

The fourth proportional to 7,619.27, 10,491.22 and 6,669.74 is: 9,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.27 : 10,491.22 = 6,669.74 : x
  2. Step 2: Convert to fraction form
    7,619.27/10,491.22 = 6,669.74/x
  3. Step 3: Cross multiply
    7,619.27x = 10,491.22 × 6,669.74
  4. Step 4: Simplify right side
    7,619.27x = 69,973,744.25
  5. Step 5: Solve for x
    x = 69,973,744.25/7,619.27
  6. Step 6: Final answer
    x = 9,183.79

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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.