Home / 6,911.90-10,367.85-1,717.78

Finding the Fourth Proportional to 6,911.90, 10,367.85 and 1,717.78

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Solution

The fourth proportional to 6,911.90, 10,367.85 and 1,717.78 is: 2,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.90 : 10,367.85 = 1,717.78 : x
  2. Step 2: Convert to fraction form
    6,911.90/10,367.85 = 1,717.78/x
  3. Step 3: Cross multiply
    6,911.90x = 10,367.85 × 1,717.78
  4. Step 4: Simplify right side
    6,911.90x = 17,809,685.37
  5. Step 5: Solve for x
    x = 17,809,685.37/6,911.90
  6. Step 6: Final answer
    x = 2,576.67

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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.