Home / 19,489.21-26,873.94-12,406.57

Finding the Fourth Proportional to 19,489.21, 26,873.94 and 12,406.57

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Solution

The fourth proportional to 19,489.21, 26,873.94 and 12,406.57 is: 17,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.21 : 26,873.94 = 12,406.57 : x
  2. Step 2: Convert to fraction form
    19,489.21/26,873.94 = 12,406.57/x
  3. Step 3: Cross multiply
    19,489.21x = 26,873.94 × 12,406.57
  4. Step 4: Simplify right side
    19,489.21x = 333,413,417.79
  5. Step 5: Solve for x
    x = 333,413,417.79/19,489.21
  6. Step 6: Final answer
    x = 17,107.59

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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.