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Finding the Fourth Proportional to 18,871.64, 26,043 and 10,373.92

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Solution

The fourth proportional to 18,871.64, 26,043 and 10,373.92 is: 14,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.64 : 26,043 = 10,373.92 : x
  2. Step 2: Convert to fraction form
    18,871.64/26,043 = 10,373.92/x
  3. Step 3: Cross multiply
    18,871.64x = 26,043 × 10,373.92
  4. Step 4: Simplify right side
    18,871.64x = 270,167,998.56
  5. Step 5: Solve for x
    x = 270,167,998.56/18,871.64
  6. Step 6: Final answer
    x = 14,316.08

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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.