Home / 18,975.48-26,187.66-11,020.20

Finding the Fourth Proportional to 18,975.48, 26,187.66 and 11,020.20

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Solution

The fourth proportional to 18,975.48, 26,187.66 and 11,020.20 is: 15,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.48 : 26,187.66 = 11,020.20 : x
  2. Step 2: Convert to fraction form
    18,975.48/26,187.66 = 11,020.20/x
  3. Step 3: Cross multiply
    18,975.48x = 26,187.66 × 11,020.20
  4. Step 4: Simplify right side
    18,975.48x = 288,593,250.73
  5. Step 5: Solve for x
    x = 288,593,250.73/18,975.48
  6. Step 6: Final answer
    x = 15,208.75

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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.