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Finding the Fourth Proportional to 8,647.83, 12,973.37 and 2,803.68

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Solution

The fourth proportional to 8,647.83, 12,973.37 and 2,803.68 is: 4,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.83 : 12,973.37 = 2,803.68 : x
  2. Step 2: Convert to fraction form
    8,647.83/12,973.37 = 2,803.68/x
  3. Step 3: Cross multiply
    8,647.83x = 12,973.37 × 2,803.68
  4. Step 4: Simplify right side
    8,647.83x = 36,373,163.98
  5. Step 5: Solve for x
    x = 36,373,163.98/8,647.83
  6. Step 6: Final answer
    x = 4,206.05

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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.