Home / 8,048.28-12,072.96-3,117.60

Finding the Fourth Proportional to 8,048.28, 12,072.96 and 3,117.60

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Solution

The fourth proportional to 8,048.28, 12,072.96 and 3,117.60 is: 4,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,048.28 : 12,072.96 = 3,117.60 : x
  2. Step 2: Convert to fraction form
    8,048.28/12,072.96 = 3,117.60/x
  3. Step 3: Cross multiply
    8,048.28x = 12,072.96 × 3,117.60
  4. Step 4: Simplify right side
    8,048.28x = 37,638,660.10
  5. Step 5: Solve for x
    x = 37,638,660.10/8,048.28
  6. Step 6: Final answer
    x = 4,676.61

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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.