Home / 19,213.46-28,823.26-8,120.24

Finding the Fourth Proportional to 19,213.46, 28,823.26 and 8,120.24

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Solution

The fourth proportional to 19,213.46, 28,823.26 and 8,120.24 is: 12,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.46 : 28,823.26 = 8,120.24 : x
  2. Step 2: Convert to fraction form
    19,213.46/28,823.26 = 8,120.24/x
  3. Step 3: Cross multiply
    19,213.46x = 28,823.26 × 8,120.24
  4. Step 4: Simplify right side
    19,213.46x = 234,051,788.78
  5. Step 5: Solve for x
    x = 234,051,788.78/19,213.46
  6. Step 6: Final answer
    x = 12,181.66

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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.