Home / 8,481.56-12,702.23-6,720.91

Finding the Fourth Proportional to 8,481.56, 12,702.23 and 6,720.91

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Solution

The fourth proportional to 8,481.56, 12,702.23 and 6,720.91 is: 10,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.56 : 12,702.23 = 6,720.91 : x
  2. Step 2: Convert to fraction form
    8,481.56/12,702.23 = 6,720.91/x
  3. Step 3: Cross multiply
    8,481.56x = 12,702.23 × 6,720.91
  4. Step 4: Simplify right side
    8,481.56x = 85,370,518.46
  5. Step 5: Solve for x
    x = 85,370,518.46/8,481.56
  6. Step 6: Final answer
    x = 10,065.42

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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.