Home / 8,619.49-12,926.35-2,774.80

Finding the Fourth Proportional to 8,619.49, 12,926.35 and 2,774.80

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Solution

The fourth proportional to 8,619.49, 12,926.35 and 2,774.80 is: 4,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.49 : 12,926.35 = 2,774.80 : x
  2. Step 2: Convert to fraction form
    8,619.49/12,926.35 = 2,774.80/x
  3. Step 3: Cross multiply
    8,619.49x = 12,926.35 × 2,774.80
  4. Step 4: Simplify right side
    8,619.49x = 35,868,035.98
  5. Step 5: Solve for x
    x = 35,868,035.98/8,619.49
  6. Step 6: Final answer
    x = 4,161.27

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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.