Home / 18,477.45-25,499.81-11,305.12

Finding the Fourth Proportional to 18,477.45, 25,499.81 and 11,305.12

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Solution

The fourth proportional to 18,477.45, 25,499.81 and 11,305.12 is: 15,601.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.45 : 25,499.81 = 11,305.12 : x
  2. Step 2: Convert to fraction form
    18,477.45/25,499.81 = 11,305.12/x
  3. Step 3: Cross multiply
    18,477.45x = 25,499.81 × 11,305.12
  4. Step 4: Simplify right side
    18,477.45x = 288,278,360.76
  5. Step 5: Solve for x
    x = 288,278,360.76/18,477.45
  6. Step 6: Final answer
    x = 15,601.63

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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.