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Finding the Fourth Proportional to 18,751.56, 25,876.98 and 10,368.12

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Solution

The fourth proportional to 18,751.56, 25,876.98 and 10,368.12 is: 14,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.56 : 25,876.98 = 10,368.12 : x
  2. Step 2: Convert to fraction form
    18,751.56/25,876.98 = 10,368.12/x
  3. Step 3: Cross multiply
    18,751.56x = 25,876.98 × 10,368.12
  4. Step 4: Simplify right side
    18,751.56x = 268,295,633.88
  5. Step 5: Solve for x
    x = 268,295,633.88/18,751.56
  6. Step 6: Final answer
    x = 14,307.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.