Home / 18,694.81-25,795.87-11,140.95

Finding the Fourth Proportional to 18,694.81, 25,795.87 and 11,140.95

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Solution

The fourth proportional to 18,694.81, 25,795.87 and 11,140.95 is: 15,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.81 : 25,795.87 = 11,140.95 : x
  2. Step 2: Convert to fraction form
    18,694.81/25,795.87 = 11,140.95/x
  3. Step 3: Cross multiply
    18,694.81x = 25,795.87 × 11,140.95
  4. Step 4: Simplify right side
    18,694.81x = 287,390,497.88
  5. Step 5: Solve for x
    x = 287,390,497.88/18,694.81
  6. Step 6: Final answer
    x = 15,372.74

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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.