Home / 8,724.64-13,092.66-5,212

Finding the Fourth Proportional to 8,724.64, 13,092.66 and 5,212

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Solution

The fourth proportional to 8,724.64, 13,092.66 and 5,212 is: 7,821.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.64 : 13,092.66 = 5,212 : x
  2. Step 2: Convert to fraction form
    8,724.64/13,092.66 = 5,212/x
  3. Step 3: Cross multiply
    8,724.64x = 13,092.66 × 5,212
  4. Step 4: Simplify right side
    8,724.64x = 68,238,943.92
  5. Step 5: Solve for x
    x = 68,238,943.92/8,724.64
  6. Step 6: Final answer
    x = 7,821.41

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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.