Home / 11,140.34-16,709.97-2,820.50

Finding the Fourth Proportional to 11,140.34, 16,709.97 and 2,820.50

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Solution

The fourth proportional to 11,140.34, 16,709.97 and 2,820.50 is: 4,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.34 : 16,709.97 = 2,820.50 : x
  2. Step 2: Convert to fraction form
    11,140.34/16,709.97 = 2,820.50/x
  3. Step 3: Cross multiply
    11,140.34x = 16,709.97 × 2,820.50
  4. Step 4: Simplify right side
    11,140.34x = 47,130,546.14
  5. Step 5: Solve for x
    x = 47,130,546.14/11,140.34
  6. Step 6: Final answer
    x = 4,230.62

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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.