Home / 13,865.06-20,790.29-6,844.79

Finding the Fourth Proportional to 13,865.06, 20,790.29 and 6,844.79

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Solution

The fourth proportional to 13,865.06, 20,790.29 and 6,844.79 is: 10,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.06 : 20,790.29 = 6,844.79 : x
  2. Step 2: Convert to fraction form
    13,865.06/20,790.29 = 6,844.79/x
  3. Step 3: Cross multiply
    13,865.06x = 20,790.29 × 6,844.79
  4. Step 4: Simplify right side
    13,865.06x = 142,305,238.18
  5. Step 5: Solve for x
    x = 142,305,238.18/13,865.06
  6. Step 6: Final answer
    x = 10,263.58

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1.5x scale

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.