Home / 12,668.33-18,992.26-5,278.36

Finding the Fourth Proportional to 12,668.33, 18,992.26 and 5,278.36

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Solution

The fourth proportional to 12,668.33, 18,992.26 and 5,278.36 is: 7,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.33 : 18,992.26 = 5,278.36 : x
  2. Step 2: Convert to fraction form
    12,668.33/18,992.26 = 5,278.36/x
  3. Step 3: Cross multiply
    12,668.33x = 18,992.26 × 5,278.36
  4. Step 4: Simplify right side
    12,668.33x = 100,247,985.49
  5. Step 5: Solve for x
    x = 100,247,985.49/12,668.33
  6. Step 6: Final answer
    x = 7,913.28

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1.5x scale

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.