Home / 12,270.78-18,410.52-5,247.84

Finding the Fourth Proportional to 12,270.78, 18,410.52 and 5,247.84

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Solution

The fourth proportional to 12,270.78, 18,410.52 and 5,247.84 is: 7,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.78 : 18,410.52 = 5,247.84 : x
  2. Step 2: Convert to fraction form
    12,270.78/18,410.52 = 5,247.84/x
  3. Step 3: Cross multiply
    12,270.78x = 18,410.52 × 5,247.84
  4. Step 4: Simplify right side
    12,270.78x = 96,615,463.28
  5. Step 5: Solve for x
    x = 96,615,463.28/12,270.78
  6. Step 6: Final answer
    x = 7,873.62

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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.