Home / 19,391.03-26,759.87-11,432.78

Finding the Fourth Proportional to 19,391.03, 26,759.87 and 11,432.78

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Solution

The fourth proportional to 19,391.03, 26,759.87 and 11,432.78 is: 15,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.03 : 26,759.87 = 11,432.78 : x
  2. Step 2: Convert to fraction form
    19,391.03/26,759.87 = 11,432.78/x
  3. Step 3: Cross multiply
    19,391.03x = 26,759.87 × 11,432.78
  4. Step 4: Simplify right side
    19,391.03x = 305,939,515.58
  5. Step 5: Solve for x
    x = 305,939,515.58/19,391.03
  6. Step 6: Final answer
    x = 15,777.38

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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.