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Finding the Fourth Proportional to 18,835.29, 28,257.56 and 8,698.94

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Solution

The fourth proportional to 18,835.29, 28,257.56 and 8,698.94 is: 13,050.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.29 : 28,257.56 = 8,698.94 : x
  2. Step 2: Convert to fraction form
    18,835.29/28,257.56 = 8,698.94/x
  3. Step 3: Cross multiply
    18,835.29x = 28,257.56 × 8,698.94
  4. Step 4: Simplify right side
    18,835.29x = 245,810,634.20
  5. Step 5: Solve for x
    x = 245,810,634.20/18,835.29
  6. Step 6: Final answer
    x = 13,050.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.