Home / 8,143.87-11,241.44-4,955.71

Finding the Fourth Proportional to 8,143.87, 11,241.44 and 4,955.71

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Solution

The fourth proportional to 8,143.87, 11,241.44 and 4,955.71 is: 6,840.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.87 : 11,241.44 = 4,955.71 : x
  2. Step 2: Convert to fraction form
    8,143.87/11,241.44 = 4,955.71/x
  3. Step 3: Cross multiply
    8,143.87x = 11,241.44 × 4,955.71
  4. Step 4: Simplify right side
    8,143.87x = 55,709,316.62
  5. Step 5: Solve for x
    x = 55,709,316.62/8,143.87
  6. Step 6: Final answer
    x = 6,840.64

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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.