Home / 18,986.61-26,199.27-11,027.55

Finding the Fourth Proportional to 18,986.61, 26,199.27 and 11,027.55

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Solution

The fourth proportional to 18,986.61, 26,199.27 and 11,027.55 is: 15,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.61 : 26,199.27 = 11,027.55 : x
  2. Step 2: Convert to fraction form
    18,986.61/26,199.27 = 11,027.55/x
  3. Step 3: Cross multiply
    18,986.61x = 26,199.27 × 11,027.55
  4. Step 4: Simplify right side
    18,986.61x = 288,913,759.89
  5. Step 5: Solve for x
    x = 288,913,759.89/18,986.61
  6. Step 6: Final answer
    x = 15,216.71

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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.