Home / 12,448.36-18,667.68-5,518

Finding the Fourth Proportional to 12,448.36, 18,667.68 and 5,518

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Solution

The fourth proportional to 12,448.36, 18,667.68 and 5,518 is: 8,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.36 : 18,667.68 = 5,518 : x
  2. Step 2: Convert to fraction form
    12,448.36/18,667.68 = 5,518/x
  3. Step 3: Cross multiply
    12,448.36x = 18,667.68 × 5,518
  4. Step 4: Simplify right side
    12,448.36x = 103,008,258.24
  5. Step 5: Solve for x
    x = 103,008,258.24/12,448.36
  6. Step 6: Final answer
    x = 8,274.85

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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.