Home / 14,347.08-19,745.04-12,138

Finding the Fourth Proportional to 14,347.08, 19,745.04 and 12,138

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Solution

The fourth proportional to 14,347.08, 19,745.04 and 12,138 is: 16,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.08 : 19,745.04 = 12,138 : x
  2. Step 2: Convert to fraction form
    14,347.08/19,745.04 = 12,138/x
  3. Step 3: Cross multiply
    14,347.08x = 19,745.04 × 12,138
  4. Step 4: Simplify right side
    14,347.08x = 239,665,295.52
  5. Step 5: Solve for x
    x = 239,665,295.52/14,347.08
  6. Step 6: Final answer
    x = 16,704.81

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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.