Home / 18,351.87-25,325.39-9,968.37

Finding the Fourth Proportional to 18,351.87, 25,325.39 and 9,968.37

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Solution

The fourth proportional to 18,351.87, 25,325.39 and 9,968.37 is: 13,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.87 : 25,325.39 = 9,968.37 : x
  2. Step 2: Convert to fraction form
    18,351.87/25,325.39 = 9,968.37/x
  3. Step 3: Cross multiply
    18,351.87x = 25,325.39 × 9,968.37
  4. Step 4: Simplify right side
    18,351.87x = 252,452,787.87
  5. Step 5: Solve for x
    x = 252,452,787.87/18,351.87
  6. Step 6: Final answer
    x = 13,756.25

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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.