Home / 11,639.62-17,455.20-4,242.34

Finding the Fourth Proportional to 11,639.62, 17,455.20 and 4,242.34

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Solution

The fourth proportional to 11,639.62, 17,455.20 and 4,242.34 is: 6,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.62 : 17,455.20 = 4,242.34 : x
  2. Step 2: Convert to fraction form
    11,639.62/17,455.20 = 4,242.34/x
  3. Step 3: Cross multiply
    11,639.62x = 17,455.20 × 4,242.34
  4. Step 4: Simplify right side
    11,639.62x = 74,050,893.17
  5. Step 5: Solve for x
    x = 74,050,893.17/11,639.62
  6. Step 6: Final answer
    x = 6,361.97

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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.