Home / 19,197.12-28,758.42-11,779.68

Finding the Fourth Proportional to 19,197.12, 28,758.42 and 11,779.68

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Solution

The fourth proportional to 19,197.12, 28,758.42 and 11,779.68 is: 17,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.12 : 28,758.42 = 11,779.68 : x
  2. Step 2: Convert to fraction form
    19,197.12/28,758.42 = 11,779.68/x
  3. Step 3: Cross multiply
    19,197.12x = 28,758.42 × 11,779.68
  4. Step 4: Simplify right side
    19,197.12x = 338,764,984.91
  5. Step 5: Solve for x
    x = 338,764,984.91/19,197.12
  6. Step 6: Final answer
    x = 17,646.66

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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.