Home / 8,401.20-12,594.86-3,133.30

Finding the Fourth Proportional to 8,401.20, 12,594.86 and 3,133.30

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Solution

The fourth proportional to 8,401.20, 12,594.86 and 3,133.30 is: 4,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.20 : 12,594.86 = 3,133.30 : x
  2. Step 2: Convert to fraction form
    8,401.20/12,594.86 = 3,133.30/x
  3. Step 3: Cross multiply
    8,401.20x = 12,594.86 × 3,133.30
  4. Step 4: Simplify right side
    8,401.20x = 39,463,474.84
  5. Step 5: Solve for x
    x = 39,463,474.84/8,401.20
  6. Step 6: Final answer
    x = 4,697.36

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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.