Home / 8,245.12-12,363.84-4,783.36

Finding the Fourth Proportional to 8,245.12, 12,363.84 and 4,783.36

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Solution

The fourth proportional to 8,245.12, 12,363.84 and 4,783.36 is: 7,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.12 : 12,363.84 = 4,783.36 : x
  2. Step 2: Convert to fraction form
    8,245.12/12,363.84 = 4,783.36/x
  3. Step 3: Cross multiply
    8,245.12x = 12,363.84 × 4,783.36
  4. Step 4: Simplify right side
    8,245.12x = 59,140,697.70
  5. Step 5: Solve for x
    x = 59,140,697.70/8,245.12
  6. Step 6: Final answer
    x = 7,172.81

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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.