Home / 18,998.06-26,217.32-11,040.80

Finding the Fourth Proportional to 18,998.06, 26,217.32 and 11,040.80

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Solution

The fourth proportional to 18,998.06, 26,217.32 and 11,040.80 is: 15,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.06 : 26,217.32 = 11,040.80 : x
  2. Step 2: Convert to fraction form
    18,998.06/26,217.32 = 11,040.80/x
  3. Step 3: Cross multiply
    18,998.06x = 26,217.32 × 11,040.80
  4. Step 4: Simplify right side
    18,998.06x = 289,460,000.37
  5. Step 5: Solve for x
    x = 289,460,000.37/18,998.06
  6. Step 6: Final answer
    x = 15,236.30

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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.