Home / 12,647.24-18,973.74-3,883.40

Finding the Fourth Proportional to 12,647.24, 18,973.74 and 3,883.40

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Solution

The fourth proportional to 12,647.24, 18,973.74 and 3,883.40 is: 5,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.24 : 18,973.74 = 3,883.40 : x
  2. Step 2: Convert to fraction form
    12,647.24/18,973.74 = 3,883.40/x
  3. Step 3: Cross multiply
    12,647.24x = 18,973.74 × 3,883.40
  4. Step 4: Simplify right side
    12,647.24x = 73,682,621.92
  5. Step 5: Solve for x
    x = 73,682,621.92/12,647.24
  6. Step 6: Final answer
    x = 5,825.98

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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.