Home / 12,379.12-18,576.24-5,361.01

Finding the Fourth Proportional to 12,379.12, 18,576.24 and 5,361.01

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Solution

The fourth proportional to 12,379.12, 18,576.24 and 5,361.01 is: 8,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.12 : 18,576.24 = 5,361.01 : x
  2. Step 2: Convert to fraction form
    12,379.12/18,576.24 = 5,361.01/x
  3. Step 3: Cross multiply
    12,379.12x = 18,576.24 × 5,361.01
  4. Step 4: Simplify right side
    12,379.12x = 99,587,408.40
  5. Step 5: Solve for x
    x = 99,587,408.40/12,379.12
  6. Step 6: Final answer
    x = 8,044.79

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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.