Home / 19,151.55-26,430.17-11,198.43

Finding the Fourth Proportional to 19,151.55, 26,430.17 and 11,198.43

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Solution

The fourth proportional to 19,151.55, 26,430.17 and 11,198.43 is: 15,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.55 : 26,430.17 = 11,198.43 : x
  2. Step 2: Convert to fraction form
    19,151.55/26,430.17 = 11,198.43/x
  3. Step 3: Cross multiply
    19,151.55x = 26,430.17 × 11,198.43
  4. Step 4: Simplify right side
    19,151.55x = 295,976,352.64
  5. Step 5: Solve for x
    x = 295,976,352.64/19,151.55
  6. Step 6: Final answer
    x = 15,454.43

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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.