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Finding the Fourth Proportional to 8,309.77, 12,467.01 and 3,382.95

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Solution

The fourth proportional to 8,309.77, 12,467.01 and 3,382.95 is: 5,075.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.77 : 12,467.01 = 3,382.95 : x
  2. Step 2: Convert to fraction form
    8,309.77/12,467.01 = 3,382.95/x
  3. Step 3: Cross multiply
    8,309.77x = 12,467.01 × 3,382.95
  4. Step 4: Simplify right side
    8,309.77x = 42,175,271.48
  5. Step 5: Solve for x
    x = 42,175,271.48/8,309.77
  6. Step 6: Final answer
    x = 5,075.38

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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.