Home / 11,639.45-17,459.15-4,240.89

Finding the Fourth Proportional to 11,639.45, 17,459.15 and 4,240.89

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Solution

The fourth proportional to 11,639.45, 17,459.15 and 4,240.89 is: 6,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.45 : 17,459.15 = 4,240.89 : x
  2. Step 2: Convert to fraction form
    11,639.45/17,459.15 = 4,240.89/x
  3. Step 3: Cross multiply
    11,639.45x = 17,459.15 × 4,240.89
  4. Step 4: Simplify right side
    11,639.45x = 74,042,313.44
  5. Step 5: Solve for x
    x = 74,042,313.44/11,639.45
  6. Step 6: Final answer
    x = 6,361.32

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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.