Home / 12,078.79-16,668.84-6,773.49

Finding the Fourth Proportional to 12,078.79, 16,668.84 and 6,773.49

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Solution

The fourth proportional to 12,078.79, 16,668.84 and 6,773.49 is: 9,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.79 : 16,668.84 = 6,773.49 : x
  2. Step 2: Convert to fraction form
    12,078.79/16,668.84 = 6,773.49/x
  3. Step 3: Cross multiply
    12,078.79x = 16,668.84 × 6,773.49
  4. Step 4: Simplify right side
    12,078.79x = 112,906,246.45
  5. Step 5: Solve for x
    x = 112,906,246.45/12,078.79
  6. Step 6: Final answer
    x = 9,347.48

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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.