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Finding the Fourth Proportional to 12,673.71, 19,010.57 and 3,908.66

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Solution

The fourth proportional to 12,673.71, 19,010.57 and 3,908.66 is: 5,862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.71 : 19,010.57 = 3,908.66 : x
  2. Step 2: Convert to fraction form
    12,673.71/19,010.57 = 3,908.66/x
  3. Step 3: Cross multiply
    12,673.71x = 19,010.57 × 3,908.66
  4. Step 4: Simplify right side
    12,673.71x = 74,305,739.94
  5. Step 5: Solve for x
    x = 74,305,739.94/12,673.71
  6. Step 6: Final answer
    x = 5,862.98

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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.