Home / 13,917.50-19,206.15-7,629.92

Finding the Fourth Proportional to 13,917.50, 19,206.15 and 7,629.92

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Solution

The fourth proportional to 13,917.50, 19,206.15 and 7,629.92 is: 10,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.50 : 19,206.15 = 7,629.92 : x
  2. Step 2: Convert to fraction form
    13,917.50/19,206.15 = 7,629.92/x
  3. Step 3: Cross multiply
    13,917.50x = 19,206.15 × 7,629.92
  4. Step 4: Simplify right side
    13,917.50x = 146,541,388.01
  5. Step 5: Solve for x
    x = 146,541,388.01/13,917.50
  6. Step 6: Final answer
    x = 10,529.29

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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.