Home / 13,166.26-18,169.73-7,860.09

Finding the Fourth Proportional to 13,166.26, 18,169.73 and 7,860.09

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Solution

The fourth proportional to 13,166.26, 18,169.73 and 7,860.09 is: 10,847.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.26 : 18,169.73 = 7,860.09 : x
  2. Step 2: Convert to fraction form
    13,166.26/18,169.73 = 7,860.09/x
  3. Step 3: Cross multiply
    13,166.26x = 18,169.73 × 7,860.09
  4. Step 4: Simplify right side
    13,166.26x = 142,815,582.93
  5. Step 5: Solve for x
    x = 142,815,582.93/13,166.26
  6. Step 6: Final answer
    x = 10,847.09

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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.