Home / 19,494.31-26,906.32-12,319.66

Finding the Fourth Proportional to 19,494.31, 26,906.32 and 12,319.66

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Solution

The fourth proportional to 19,494.31, 26,906.32 and 12,319.66 is: 17,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,494.31 : 26,906.32 = 12,319.66 : x
  2. Step 2: Convert to fraction form
    19,494.31/26,906.32 = 12,319.66/x
  3. Step 3: Cross multiply
    19,494.31x = 26,906.32 × 12,319.66
  4. Step 4: Simplify right side
    19,494.31x = 331,476,728.63
  5. Step 5: Solve for x
    x = 331,476,728.63/19,494.31
  6. Step 6: Final answer
    x = 17,003.77

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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.