Home / 8,612.16-12,919.56-2,768.04

Finding the Fourth Proportional to 8,612.16, 12,919.56 and 2,768.04

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Solution

The fourth proportional to 8,612.16, 12,919.56 and 2,768.04 is: 4,152.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.16 : 12,919.56 = 2,768.04 : x
  2. Step 2: Convert to fraction form
    8,612.16/12,919.56 = 2,768.04/x
  3. Step 3: Cross multiply
    8,612.16x = 12,919.56 × 2,768.04
  4. Step 4: Simplify right side
    8,612.16x = 35,761,858.86
  5. Step 5: Solve for x
    x = 35,761,858.86/8,612.16
  6. Step 6: Final answer
    x = 4,152.48

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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.