Home / 13,184.37-18,181.49-12,090.38

Finding the Fourth Proportional to 13,184.37, 18,181.49 and 12,090.38

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Solution

The fourth proportional to 13,184.37, 18,181.49 and 12,090.38 is: 16,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.37 : 18,181.49 = 12,090.38 : x
  2. Step 2: Convert to fraction form
    13,184.37/18,181.49 = 12,090.38/x
  3. Step 3: Cross multiply
    13,184.37x = 18,181.49 × 12,090.38
  4. Step 4: Simplify right side
    13,184.37x = 219,820,971.71
  5. Step 5: Solve for x
    x = 219,820,971.71/13,184.37
  6. Step 6: Final answer
    x = 16,672.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.