Home / 8,019.28-12,020.73-3,087.64

Finding the Fourth Proportional to 8,019.28, 12,020.73 and 3,087.64

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Solution

The fourth proportional to 8,019.28, 12,020.73 and 3,087.64 is: 4,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.28 : 12,020.73 = 3,087.64 : x
  2. Step 2: Convert to fraction form
    8,019.28/12,020.73 = 3,087.64/x
  3. Step 3: Cross multiply
    8,019.28x = 12,020.73 × 3,087.64
  4. Step 4: Simplify right side
    8,019.28x = 37,115,686.78
  5. Step 5: Solve for x
    x = 37,115,686.78/8,019.28
  6. Step 6: Final answer
    x = 4,628.31

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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.