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Finding the Fourth Proportional to 18,759, 25,888.23 and 10,375.50

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Solution

The fourth proportional to 18,759, 25,888.23 and 10,375.50 is: 14,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759 : 25,888.23 = 10,375.50 : x
  2. Step 2: Convert to fraction form
    18,759/25,888.23 = 10,375.50/x
  3. Step 3: Cross multiply
    18,759x = 25,888.23 × 10,375.50
  4. Step 4: Simplify right side
    18,759x = 268,603,330.37
  5. Step 5: Solve for x
    x = 268,603,330.37/18,759
  6. Step 6: Final answer
    x = 14,318.64

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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.