Home / 12,972.62-17,899.62-7,668.29

Finding the Fourth Proportional to 12,972.62, 17,899.62 and 7,668.29

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Solution

The fourth proportional to 12,972.62, 17,899.62 and 7,668.29 is: 10,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.62 : 17,899.62 = 7,668.29 : x
  2. Step 2: Convert to fraction form
    12,972.62/17,899.62 = 7,668.29/x
  3. Step 3: Cross multiply
    12,972.62x = 17,899.62 × 7,668.29
  4. Step 4: Simplify right side
    12,972.62x = 137,259,477.05
  5. Step 5: Solve for x
    x = 137,259,477.05/12,972.62
  6. Step 6: Final answer
    x = 10,580.71

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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.