Home / 12,072.16-18,109.19-4,676.05

Finding the Fourth Proportional to 12,072.16, 18,109.19 and 4,676.05

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Solution

The fourth proportional to 12,072.16, 18,109.19 and 4,676.05 is: 7,014.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.16 : 18,109.19 = 4,676.05 : x
  2. Step 2: Convert to fraction form
    12,072.16/18,109.19 = 4,676.05/x
  3. Step 3: Cross multiply
    12,072.16x = 18,109.19 × 4,676.05
  4. Step 4: Simplify right side
    12,072.16x = 84,679,477.90
  5. Step 5: Solve for x
    x = 84,679,477.90/12,072.16
  6. Step 6: Final answer
    x = 7,014.44

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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.