Home / 19,183.47-28,779.14-8,090.16

Finding the Fourth Proportional to 19,183.47, 28,779.14 and 8,090.16

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Solution

The fourth proportional to 19,183.47, 28,779.14 and 8,090.16 is: 12,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.47 : 28,779.14 = 8,090.16 : x
  2. Step 2: Convert to fraction form
    19,183.47/28,779.14 = 8,090.16/x
  3. Step 3: Cross multiply
    19,183.47x = 28,779.14 × 8,090.16
  4. Step 4: Simplify right side
    19,183.47x = 232,827,847.26
  5. Step 5: Solve for x
    x = 232,827,847.26/19,183.47
  6. Step 6: Final answer
    x = 12,136.90

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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.