Home / 6,986.40-10,483.16-3,865.80

Finding the Fourth Proportional to 6,986.40, 10,483.16 and 3,865.80

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Solution

The fourth proportional to 6,986.40, 10,483.16 and 3,865.80 is: 5,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.40 : 10,483.16 = 3,865.80 : x
  2. Step 2: Convert to fraction form
    6,986.40/10,483.16 = 3,865.80/x
  3. Step 3: Cross multiply
    6,986.40x = 10,483.16 × 3,865.80
  4. Step 4: Simplify right side
    6,986.40x = 40,525,799.93
  5. Step 5: Solve for x
    x = 40,525,799.93/6,986.40
  6. Step 6: Final answer
    x = 5,800.67

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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.