Home / 8,838.94-13,257.71-5,138.81

Finding the Fourth Proportional to 8,838.94, 13,257.71 and 5,138.81

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Solution

The fourth proportional to 8,838.94, 13,257.71 and 5,138.81 is: 7,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.94 : 13,257.71 = 5,138.81 : x
  2. Step 2: Convert to fraction form
    8,838.94/13,257.71 = 5,138.81/x
  3. Step 3: Cross multiply
    8,838.94x = 13,257.71 × 5,138.81
  4. Step 4: Simplify right side
    8,838.94x = 68,128,799.28
  5. Step 5: Solve for x
    x = 68,128,799.28/8,838.94
  6. Step 6: Final answer
    x = 7,707.80

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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.