Home / 19,012.32-28,469.88-11,226.60

Finding the Fourth Proportional to 19,012.32, 28,469.88 and 11,226.60

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Solution

The fourth proportional to 19,012.32, 28,469.88 and 11,226.60 is: 16,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.32 : 28,469.88 = 11,226.60 : x
  2. Step 2: Convert to fraction form
    19,012.32/28,469.88 = 11,226.60/x
  3. Step 3: Cross multiply
    19,012.32x = 28,469.88 × 11,226.60
  4. Step 4: Simplify right side
    19,012.32x = 319,619,954.81
  5. Step 5: Solve for x
    x = 319,619,954.81/19,012.32
  6. Step 6: Final answer
    x = 16,811.20

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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.