Home / 19,515.26-26,928.16-11,445.86

Finding the Fourth Proportional to 19,515.26, 26,928.16 and 11,445.86

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Solution

The fourth proportional to 19,515.26, 26,928.16 and 11,445.86 is: 15,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.26 : 26,928.16 = 11,445.86 : x
  2. Step 2: Convert to fraction form
    19,515.26/26,928.16 = 11,445.86/x
  3. Step 3: Cross multiply
    19,515.26x = 26,928.16 × 11,445.86
  4. Step 4: Simplify right side
    19,515.26x = 308,215,949.42
  5. Step 5: Solve for x
    x = 308,215,949.42/19,515.26
  6. Step 6: Final answer
    x = 15,793.59

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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.