Home / 19,218.44-28,806.60-7,518.80

Finding the Fourth Proportional to 19,218.44, 28,806.60 and 7,518.80

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Solution

The fourth proportional to 19,218.44, 28,806.60 and 7,518.80 is: 11,269.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.44 : 28,806.60 = 7,518.80 : x
  2. Step 2: Convert to fraction form
    19,218.44/28,806.60 = 7,518.80/x
  3. Step 3: Cross multiply
    19,218.44x = 28,806.60 × 7,518.80
  4. Step 4: Simplify right side
    19,218.44x = 216,591,064.08
  5. Step 5: Solve for x
    x = 216,591,064.08/19,218.44
  6. Step 6: Final answer
    x = 11,269.96

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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.