Home / 11,918.34-16,431.66-10,257.57

Finding the Fourth Proportional to 11,918.34, 16,431.66 and 10,257.57

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Solution

The fourth proportional to 11,918.34, 16,431.66 and 10,257.57 is: 14,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.34 : 16,431.66 = 10,257.57 : x
  2. Step 2: Convert to fraction form
    11,918.34/16,431.66 = 10,257.57/x
  3. Step 3: Cross multiply
    11,918.34x = 16,431.66 × 10,257.57
  4. Step 4: Simplify right side
    11,918.34x = 168,548,902.67
  5. Step 5: Solve for x
    x = 168,548,902.67/11,918.34
  6. Step 6: Final answer
    x = 14,141.98

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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.