Home / 11,672.78-17,510.75-3,772.67

Finding the Fourth Proportional to 11,672.78, 17,510.75 and 3,772.67

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Solution

The fourth proportional to 11,672.78, 17,510.75 and 3,772.67 is: 5,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.78 : 17,510.75 = 3,772.67 : x
  2. Step 2: Convert to fraction form
    11,672.78/17,510.75 = 3,772.67/x
  3. Step 3: Cross multiply
    11,672.78x = 17,510.75 × 3,772.67
  4. Step 4: Simplify right side
    11,672.78x = 66,062,238.18
  5. Step 5: Solve for x
    x = 66,062,238.18/11,672.78
  6. Step 6: Final answer
    x = 5,659.51

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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.