Home / 19,499.40-29,205.90-7,806.60

Finding the Fourth Proportional to 19,499.40, 29,205.90 and 7,806.60

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Solution

The fourth proportional to 19,499.40, 29,205.90 and 7,806.60 is: 11,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,499.40 : 29,205.90 = 7,806.60 : x
  2. Step 2: Convert to fraction form
    19,499.40/29,205.90 = 7,806.60/x
  3. Step 3: Cross multiply
    19,499.40x = 29,205.90 × 7,806.60
  4. Step 4: Simplify right side
    19,499.40x = 227,998,778.94
  5. Step 5: Solve for x
    x = 227,998,778.94/19,499.40
  6. Step 6: Final answer
    x = 11,692.60

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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.