Home / 18,358.05-25,371.45-13,880.37

Finding the Fourth Proportional to 18,358.05, 25,371.45 and 13,880.37

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Solution

The fourth proportional to 18,358.05, 25,371.45 and 13,880.37 is: 19,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.05 : 25,371.45 = 13,880.37 : x
  2. Step 2: Convert to fraction form
    18,358.05/25,371.45 = 13,880.37/x
  3. Step 3: Cross multiply
    18,358.05x = 25,371.45 × 13,880.37
  4. Step 4: Simplify right side
    18,358.05x = 352,165,113.44
  5. Step 5: Solve for x
    x = 352,165,113.44/18,358.05
  6. Step 6: Final answer
    x = 19,183.14

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1.5x scale

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.