Home / 8,735.45-13,099.15-2,811.25

Finding the Fourth Proportional to 8,735.45, 13,099.15 and 2,811.25

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Solution

The fourth proportional to 8,735.45, 13,099.15 and 2,811.25 is: 4,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.45 : 13,099.15 = 2,811.25 : x
  2. Step 2: Convert to fraction form
    8,735.45/13,099.15 = 2,811.25/x
  3. Step 3: Cross multiply
    8,735.45x = 13,099.15 × 2,811.25
  4. Step 4: Simplify right side
    8,735.45x = 36,824,905.89
  5. Step 5: Solve for x
    x = 36,824,905.89/8,735.45
  6. Step 6: Final answer
    x = 4,215.57

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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.