Home / 7,619.87-11,432.40-4,110.21

Finding the Fourth Proportional to 7,619.87, 11,432.40 and 4,110.21

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Solution

The fourth proportional to 7,619.87, 11,432.40 and 4,110.21 is: 6,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.87 : 11,432.40 = 4,110.21 : x
  2. Step 2: Convert to fraction form
    7,619.87/11,432.40 = 4,110.21/x
  3. Step 3: Cross multiply
    7,619.87x = 11,432.40 × 4,110.21
  4. Step 4: Simplify right side
    7,619.87x = 46,989,507.64
  5. Step 5: Solve for x
    x = 46,989,507.64/7,619.87
  6. Step 6: Final answer
    x = 6,166.71

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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.