Home / 8,705.31-13,059.93-3,158.64

Finding the Fourth Proportional to 8,705.31, 13,059.93 and 3,158.64

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Solution

The fourth proportional to 8,705.31, 13,059.93 and 3,158.64 is: 4,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.31 : 13,059.93 = 3,158.64 : x
  2. Step 2: Convert to fraction form
    8,705.31/13,059.93 = 3,158.64/x
  3. Step 3: Cross multiply
    8,705.31x = 13,059.93 × 3,158.64
  4. Step 4: Simplify right side
    8,705.31x = 41,251,629.14
  5. Step 5: Solve for x
    x = 41,251,629.14/8,705.31
  6. Step 6: Final answer
    x = 4,738.68

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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.