Home / 18,355.99-25,346.78-11,653.51

Finding the Fourth Proportional to 18,355.99, 25,346.78 and 11,653.51

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Solution

The fourth proportional to 18,355.99, 25,346.78 and 11,653.51 is: 16,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.99 : 25,346.78 = 11,653.51 : x
  2. Step 2: Convert to fraction form
    18,355.99/25,346.78 = 11,653.51/x
  3. Step 3: Cross multiply
    18,355.99x = 25,346.78 × 11,653.51
  4. Step 4: Simplify right side
    18,355.99x = 295,378,954.20
  5. Step 5: Solve for x
    x = 295,378,954.20/18,355.99
  6. Step 6: Final answer
    x = 16,091.69

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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.