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Finding the Fourth Proportional to 18,881.71, 26,054.97 and 10,383.68

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Solution

The fourth proportional to 18,881.71, 26,054.97 and 10,383.68 is: 14,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.71 : 26,054.97 = 10,383.68 : x
  2. Step 2: Convert to fraction form
    18,881.71/26,054.97 = 10,383.68/x
  3. Step 3: Cross multiply
    18,881.71x = 26,054.97 × 10,383.68
  4. Step 4: Simplify right side
    18,881.71x = 270,546,497.09
  5. Step 5: Solve for x
    x = 270,546,497.09/18,881.71
  6. Step 6: Final answer
    x = 14,328.50

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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.