Home / 8,022.40-12,019.60-4,686

Finding the Fourth Proportional to 8,022.40, 12,019.60 and 4,686

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Solution

The fourth proportional to 8,022.40, 12,019.60 and 4,686 is: 7,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,022.40 : 12,019.60 = 4,686 : x
  2. Step 2: Convert to fraction form
    8,022.40/12,019.60 = 4,686/x
  3. Step 3: Cross multiply
    8,022.40x = 12,019.60 × 4,686
  4. Step 4: Simplify right side
    8,022.40x = 56,323,845.60
  5. Step 5: Solve for x
    x = 56,323,845.60/8,022.40
  6. Step 6: Final answer
    x = 7,020.82

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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.