Home / 18,372.32-25,345.68-10,916

Finding the Fourth Proportional to 18,372.32, 25,345.68 and 10,916

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Solution

The fourth proportional to 18,372.32, 25,345.68 and 10,916 is: 15,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.32 : 25,345.68 = 10,916 : x
  2. Step 2: Convert to fraction form
    18,372.32/25,345.68 = 10,916/x
  3. Step 3: Cross multiply
    18,372.32x = 25,345.68 × 10,916
  4. Step 4: Simplify right side
    18,372.32x = 276,673,442.88
  5. Step 5: Solve for x
    x = 276,673,442.88/18,372.32
  6. Step 6: Final answer
    x = 15,059.25

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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.