Home / 12,629.94-18,920.67-7,066.43

Finding the Fourth Proportional to 12,629.94, 18,920.67 and 7,066.43

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Solution

The fourth proportional to 12,629.94, 18,920.67 and 7,066.43 is: 10,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.94 : 18,920.67 = 7,066.43 : x
  2. Step 2: Convert to fraction form
    12,629.94/18,920.67 = 7,066.43/x
  3. Step 3: Cross multiply
    12,629.94x = 18,920.67 × 7,066.43
  4. Step 4: Simplify right side
    12,629.94x = 133,701,590.11
  5. Step 5: Solve for x
    x = 133,701,590.11/12,629.94
  6. Step 6: Final answer
    x = 10,586.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.