Home / 19,290.78-26,623.56-11,333.70

Finding the Fourth Proportional to 19,290.78, 26,623.56 and 11,333.70

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Solution

The fourth proportional to 19,290.78, 26,623.56 and 11,333.70 is: 15,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.78 : 26,623.56 = 11,333.70 : x
  2. Step 2: Convert to fraction form
    19,290.78/26,623.56 = 11,333.70/x
  3. Step 3: Cross multiply
    19,290.78x = 26,623.56 × 11,333.70
  4. Step 4: Simplify right side
    19,290.78x = 301,743,441.97
  5. Step 5: Solve for x
    x = 301,743,441.97/19,290.78
  6. Step 6: Final answer
    x = 15,641.85

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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.