Home / 13,911.75-19,198.01-7,943.06

Finding the Fourth Proportional to 13,911.75, 19,198.01 and 7,943.06

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Solution

The fourth proportional to 13,911.75, 19,198.01 and 7,943.06 is: 10,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.75 : 19,198.01 = 7,943.06 : x
  2. Step 2: Convert to fraction form
    13,911.75/19,198.01 = 7,943.06/x
  3. Step 3: Cross multiply
    13,911.75x = 19,198.01 × 7,943.06
  4. Step 4: Simplify right side
    13,911.75x = 152,491,013.16
  5. Step 5: Solve for x
    x = 152,491,013.16/13,911.75
  6. Step 6: Final answer
    x = 10,961.31

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1.5x scale

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.