Home / 8,829.21-13,243.41-2,985.87

Finding the Fourth Proportional to 8,829.21, 13,243.41 and 2,985.87

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Solution

The fourth proportional to 8,829.21, 13,243.41 and 2,985.87 is: 4,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.21 : 13,243.41 = 2,985.87 : x
  2. Step 2: Convert to fraction form
    8,829.21/13,243.41 = 2,985.87/x
  3. Step 3: Cross multiply
    8,829.21x = 13,243.41 × 2,985.87
  4. Step 4: Simplify right side
    8,829.21x = 39,543,100.62
  5. Step 5: Solve for x
    x = 39,543,100.62/8,829.21
  6. Step 6: Final answer
    x = 4,478.67

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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.