Home / 12,668.60-19,003.98-3,309.86

Finding the Fourth Proportional to 12,668.60, 19,003.98 and 3,309.86

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Solution

The fourth proportional to 12,668.60, 19,003.98 and 3,309.86 is: 4,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.60 : 19,003.98 = 3,309.86 : x
  2. Step 2: Convert to fraction form
    12,668.60/19,003.98 = 3,309.86/x
  3. Step 3: Cross multiply
    12,668.60x = 19,003.98 × 3,309.86
  4. Step 4: Simplify right side
    12,668.60x = 62,900,513.24
  5. Step 5: Solve for x
    x = 62,900,513.24/12,668.60
  6. Step 6: Final answer
    x = 4,965.07

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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.