Home / 8,604.24-12,909.60-3,984

Finding the Fourth Proportional to 8,604.24, 12,909.60 and 3,984

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Solution

The fourth proportional to 8,604.24, 12,909.60 and 3,984 is: 5,977.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.24 : 12,909.60 = 3,984 : x
  2. Step 2: Convert to fraction form
    8,604.24/12,909.60 = 3,984/x
  3. Step 3: Cross multiply
    8,604.24x = 12,909.60 × 3,984
  4. Step 4: Simplify right side
    8,604.24x = 51,431,846.40
  5. Step 5: Solve for x
    x = 51,431,846.40/8,604.24
  6. Step 6: Final answer
    x = 5,977.50

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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.