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Finding the Fourth Proportional to 8,461.00, 12,692.72 and 2,618.06

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Solution

The fourth proportional to 8,461.00, 12,692.72 and 2,618.06 is: 3,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.00 : 12,692.72 = 2,618.06 : x
  2. Step 2: Convert to fraction form
    8,461.00/12,692.72 = 2,618.06/x
  3. Step 3: Cross multiply
    8,461.00x = 12,692.72 × 2,618.06
  4. Step 4: Simplify right side
    8,461.00x = 33,230,321.16
  5. Step 5: Solve for x
    x = 33,230,321.16/8,461.00
  6. Step 6: Final answer
    x = 3,927.47

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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.