Home / 14,011.75-21,010.20-4,149.67

Finding the Fourth Proportional to 14,011.75, 21,010.20 and 4,149.67

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Solution

The fourth proportional to 14,011.75, 21,010.20 and 4,149.67 is: 6,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.75 : 21,010.20 = 4,149.67 : x
  2. Step 2: Convert to fraction form
    14,011.75/21,010.20 = 4,149.67/x
  3. Step 3: Cross multiply
    14,011.75x = 21,010.20 × 4,149.67
  4. Step 4: Simplify right side
    14,011.75x = 87,185,396.63
  5. Step 5: Solve for x
    x = 87,185,396.63/14,011.75
  6. Step 6: Final answer
    x = 6,222.31

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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.