Home / 8,080.21-11,151.64-4,936.40

Finding the Fourth Proportional to 8,080.21, 11,151.64 and 4,936.40

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Solution

The fourth proportional to 8,080.21, 11,151.64 and 4,936.40 is: 6,812.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.21 : 11,151.64 = 4,936.40 : x
  2. Step 2: Convert to fraction form
    8,080.21/11,151.64 = 4,936.40/x
  3. Step 3: Cross multiply
    8,080.21x = 11,151.64 × 4,936.40
  4. Step 4: Simplify right side
    8,080.21x = 55,048,955.70
  5. Step 5: Solve for x
    x = 55,048,955.70/8,080.21
  6. Step 6: Final answer
    x = 6,812.81

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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.