Home / 8,724.68-13,090.49-3,178.41

Finding the Fourth Proportional to 8,724.68, 13,090.49 and 3,178.41

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Solution

The fourth proportional to 8,724.68, 13,090.49 and 3,178.41 is: 4,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.68 : 13,090.49 = 3,178.41 : x
  2. Step 2: Convert to fraction form
    8,724.68/13,090.49 = 3,178.41/x
  3. Step 3: Cross multiply
    8,724.68x = 13,090.49 × 3,178.41
  4. Step 4: Simplify right side
    8,724.68x = 41,606,944.32
  5. Step 5: Solve for x
    x = 41,606,944.32/8,724.68
  6. Step 6: Final answer
    x = 4,768.88

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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.