Home / 19,450.11-26,840.12-11,489.43

Finding the Fourth Proportional to 19,450.11, 26,840.12 and 11,489.43

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Solution

The fourth proportional to 19,450.11, 26,840.12 and 11,489.43 is: 15,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,450.11 : 26,840.12 = 11,489.43 : x
  2. Step 2: Convert to fraction form
    19,450.11/26,840.12 = 11,489.43/x
  3. Step 3: Cross multiply
    19,450.11x = 26,840.12 × 11,489.43
  4. Step 4: Simplify right side
    19,450.11x = 308,377,679.93
  5. Step 5: Solve for x
    x = 308,377,679.93/19,450.11
  6. Step 6: Final answer
    x = 15,854.80

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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.