Home / 8,705.92-13,059.52-3,157.12

Finding the Fourth Proportional to 8,705.92, 13,059.52 and 3,157.12

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Solution

The fourth proportional to 8,705.92, 13,059.52 and 3,157.12 is: 4,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.92 : 13,059.52 = 3,157.12 : x
  2. Step 2: Convert to fraction form
    8,705.92/13,059.52 = 3,157.12/x
  3. Step 3: Cross multiply
    8,705.92x = 13,059.52 × 3,157.12
  4. Step 4: Simplify right side
    8,705.92x = 41,230,471.78
  5. Step 5: Solve for x
    x = 41,230,471.78/8,705.92
  6. Step 6: Final answer
    x = 4,735.91

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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.