Home / 13,917.83-20,894.56-11,956.01

Finding the Fourth Proportional to 13,917.83, 20,894.56 and 11,956.01

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Solution

The fourth proportional to 13,917.83, 20,894.56 and 11,956.01 is: 17,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.83 : 20,894.56 = 11,956.01 : x
  2. Step 2: Convert to fraction form
    13,917.83/20,894.56 = 11,956.01/x
  3. Step 3: Cross multiply
    13,917.83x = 20,894.56 × 11,956.01
  4. Step 4: Simplify right side
    13,917.83x = 249,815,433.94
  5. Step 5: Solve for x
    x = 249,815,433.94/13,917.83
  6. Step 6: Final answer
    x = 17,949.32

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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.