Home / 12,843.36-17,718.21-7,535.79

Finding the Fourth Proportional to 12,843.36, 17,718.21 and 7,535.79

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Solution

The fourth proportional to 12,843.36, 17,718.21 and 7,535.79 is: 10,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.36 : 17,718.21 = 7,535.79 : x
  2. Step 2: Convert to fraction form
    12,843.36/17,718.21 = 7,535.79/x
  3. Step 3: Cross multiply
    12,843.36x = 17,718.21 × 7,535.79
  4. Step 4: Simplify right side
    12,843.36x = 133,520,709.74
  5. Step 5: Solve for x
    x = 133,520,709.74/12,843.36
  6. Step 6: Final answer
    x = 10,396.09

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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.