Home / 8,172.26-11,278.49-4,816.12

Finding the Fourth Proportional to 8,172.26, 11,278.49 and 4,816.12

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Solution

The fourth proportional to 8,172.26, 11,278.49 and 4,816.12 is: 6,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.26 : 11,278.49 = 4,816.12 : x
  2. Step 2: Convert to fraction form
    8,172.26/11,278.49 = 4,816.12/x
  3. Step 3: Cross multiply
    8,172.26x = 11,278.49 × 4,816.12
  4. Step 4: Simplify right side
    8,172.26x = 54,318,561.26
  5. Step 5: Solve for x
    x = 54,318,561.26/8,172.26
  6. Step 6: Final answer
    x = 6,646.70

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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.