Home / 13,976.64-20,919.52-10,277.92

Finding the Fourth Proportional to 13,976.64, 20,919.52 and 10,277.92

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Solution

The fourth proportional to 13,976.64, 20,919.52 and 10,277.92 is: 15,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.64 : 20,919.52 = 10,277.92 : x
  2. Step 2: Convert to fraction form
    13,976.64/20,919.52 = 10,277.92/x
  3. Step 3: Cross multiply
    13,976.64x = 20,919.52 × 10,277.92
  4. Step 4: Simplify right side
    13,976.64x = 215,009,153.00
  5. Step 5: Solve for x
    x = 215,009,153.00/13,976.64
  6. Step 6: Final answer
    x = 15,383.47

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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.