Home / 7,639.03-11,435.86-4,165.75

Finding the Fourth Proportional to 7,639.03, 11,435.86 and 4,165.75

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Solution

The fourth proportional to 7,639.03, 11,435.86 and 4,165.75 is: 6,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.03 : 11,435.86 = 4,165.75 : x
  2. Step 2: Convert to fraction form
    7,639.03/11,435.86 = 4,165.75/x
  3. Step 3: Cross multiply
    7,639.03x = 11,435.86 × 4,165.75
  4. Step 4: Simplify right side
    7,639.03x = 47,638,933.80
  5. Step 5: Solve for x
    x = 47,638,933.80/7,639.03
  6. Step 6: Final answer
    x = 6,236.25

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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.