Home / 8,078.96-11,148.86-4,722.28

Finding the Fourth Proportional to 8,078.96, 11,148.86 and 4,722.28

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Solution

The fourth proportional to 8,078.96, 11,148.86 and 4,722.28 is: 6,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.96 : 11,148.86 = 4,722.28 : x
  2. Step 2: Convert to fraction form
    8,078.96/11,148.86 = 4,722.28/x
  3. Step 3: Cross multiply
    8,078.96x = 11,148.86 × 4,722.28
  4. Step 4: Simplify right side
    8,078.96x = 52,648,022.53
  5. Step 5: Solve for x
    x = 52,648,022.53/8,078.96
  6. Step 6: Final answer
    x = 6,516.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.