Home / 13,608.92-20,360.33-11,929.72

Finding the Fourth Proportional to 13,608.92, 20,360.33 and 11,929.72

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Solution

The fourth proportional to 13,608.92, 20,360.33 and 11,929.72 is: 17,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.92 : 20,360.33 = 11,929.72 : x
  2. Step 2: Convert to fraction form
    13,608.92/20,360.33 = 11,929.72/x
  3. Step 3: Cross multiply
    13,608.92x = 20,360.33 × 11,929.72
  4. Step 4: Simplify right side
    13,608.92x = 242,893,036.01
  5. Step 5: Solve for x
    x = 242,893,036.01/13,608.92
  6. Step 6: Final answer
    x = 17,848.08

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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.