Home / 18,351.33-25,329.36-10,398.25

Finding the Fourth Proportional to 18,351.33, 25,329.36 and 10,398.25

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Solution

The fourth proportional to 18,351.33, 25,329.36 and 10,398.25 is: 14,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.33 : 25,329.36 = 10,398.25 : x
  2. Step 2: Convert to fraction form
    18,351.33/25,329.36 = 10,398.25/x
  3. Step 3: Cross multiply
    18,351.33x = 25,329.36 × 10,398.25
  4. Step 4: Simplify right side
    18,351.33x = 263,381,017.62
  5. Step 5: Solve for x
    x = 263,381,017.62/18,351.33
  6. Step 6: Final answer
    x = 14,352.15

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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.