Home / 7,619.37-11,431.65-4,109.71

Finding the Fourth Proportional to 7,619.37, 11,431.65 and 4,109.71

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Solution

The fourth proportional to 7,619.37, 11,431.65 and 4,109.71 is: 6,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.37 : 11,431.65 = 4,109.71 : x
  2. Step 2: Convert to fraction form
    7,619.37/11,431.65 = 4,109.71/x
  3. Step 3: Cross multiply
    7,619.37x = 11,431.65 × 4,109.71
  4. Step 4: Simplify right side
    7,619.37x = 46,980,709.16
  5. Step 5: Solve for x
    x = 46,980,709.16/7,619.37
  6. Step 6: Final answer
    x = 6,165.96

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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.