Home / 12,645.09-17,446.73-8,169.03

Finding the Fourth Proportional to 12,645.09, 17,446.73 and 8,169.03

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Solution

The fourth proportional to 12,645.09, 17,446.73 and 8,169.03 is: 11,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.09 : 17,446.73 = 8,169.03 : x
  2. Step 2: Convert to fraction form
    12,645.09/17,446.73 = 8,169.03/x
  3. Step 3: Cross multiply
    12,645.09x = 17,446.73 × 8,169.03
  4. Step 4: Simplify right side
    12,645.09x = 142,522,819.93
  5. Step 5: Solve for x
    x = 142,522,819.93/12,645.09
  6. Step 6: Final answer
    x = 11,271.00

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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.