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Finding the Fourth Proportional to 8,519.81, 12,779.84 and 2,596.82

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Solution

The fourth proportional to 8,519.81, 12,779.84 and 2,596.82 is: 3,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.81 : 12,779.84 = 2,596.82 : x
  2. Step 2: Convert to fraction form
    8,519.81/12,779.84 = 2,596.82/x
  3. Step 3: Cross multiply
    8,519.81x = 12,779.84 × 2,596.82
  4. Step 4: Simplify right side
    8,519.81x = 33,186,886.70
  5. Step 5: Solve for x
    x = 33,186,886.70/8,519.81
  6. Step 6: Final answer
    x = 3,895.26

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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.