Home / 8,412.44-12,618.69-2,866.40

Finding the Fourth Proportional to 8,412.44, 12,618.69 and 2,866.40

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Solution

The fourth proportional to 8,412.44, 12,618.69 and 2,866.40 is: 4,299.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.44 : 12,618.69 = 2,866.40 : x
  2. Step 2: Convert to fraction form
    8,412.44/12,618.69 = 2,866.40/x
  3. Step 3: Cross multiply
    8,412.44x = 12,618.69 × 2,866.40
  4. Step 4: Simplify right side
    8,412.44x = 36,170,213.02
  5. Step 5: Solve for x
    x = 36,170,213.02/8,412.44
  6. Step 6: Final answer
    x = 4,299.61

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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.