Home / 11,639.68-17,453.76-4,242.56

Finding the Fourth Proportional to 11,639.68, 17,453.76 and 4,242.56

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Solution

The fourth proportional to 11,639.68, 17,453.76 and 4,242.56 is: 6,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.68 : 17,453.76 = 4,242.56 : x
  2. Step 2: Convert to fraction form
    11,639.68/17,453.76 = 4,242.56/x
  3. Step 3: Cross multiply
    11,639.68x = 17,453.76 × 4,242.56
  4. Step 4: Simplify right side
    11,639.68x = 74,048,624.03
  5. Step 5: Solve for x
    x = 74,048,624.03/11,639.68
  6. Step 6: Final answer
    x = 6,361.74

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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.