Home / 13,584.73-18,746.92-7,919.71

Finding the Fourth Proportional to 13,584.73, 18,746.92 and 7,919.71

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Solution

The fourth proportional to 13,584.73, 18,746.92 and 7,919.71 is: 10,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.73 : 18,746.92 = 7,919.71 : x
  2. Step 2: Convert to fraction form
    13,584.73/18,746.92 = 7,919.71/x
  3. Step 3: Cross multiply
    13,584.73x = 18,746.92 × 7,919.71
  4. Step 4: Simplify right side
    13,584.73x = 148,470,238.28
  5. Step 5: Solve for x
    x = 148,470,238.28/13,584.73
  6. Step 6: Final answer
    x = 10,929.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.