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Finding the Fourth Proportional to 8,208.55, 12,313.10 and 2,661.94

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Solution

The fourth proportional to 8,208.55, 12,313.10 and 2,661.94 is: 3,993.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.55 : 12,313.10 = 2,661.94 : x
  2. Step 2: Convert to fraction form
    8,208.55/12,313.10 = 2,661.94/x
  3. Step 3: Cross multiply
    8,208.55x = 12,313.10 × 2,661.94
  4. Step 4: Simplify right side
    8,208.55x = 32,776,689.32
  5. Step 5: Solve for x
    x = 32,776,689.32/8,208.55
  6. Step 6: Final answer
    x = 3,993.00

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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.