Home / 18,868.14-26,055.54-12,169.44

Finding the Fourth Proportional to 18,868.14, 26,055.54 and 12,169.44

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Solution

The fourth proportional to 18,868.14, 26,055.54 and 12,169.44 is: 16,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.14 : 26,055.54 = 12,169.44 : x
  2. Step 2: Convert to fraction form
    18,868.14/26,055.54 = 12,169.44/x
  3. Step 3: Cross multiply
    18,868.14x = 26,055.54 × 12,169.44
  4. Step 4: Simplify right side
    18,868.14x = 317,081,330.70
  5. Step 5: Solve for x
    x = 317,081,330.70/18,868.14
  6. Step 6: Final answer
    x = 16,805.12

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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.