Home / 14,004.75-20,999.70-4,142.67

Finding the Fourth Proportional to 14,004.75, 20,999.70 and 4,142.67

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Solution

The fourth proportional to 14,004.75, 20,999.70 and 4,142.67 is: 6,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.75 : 20,999.70 = 4,142.67 : x
  2. Step 2: Convert to fraction form
    14,004.75/20,999.70 = 4,142.67/x
  3. Step 3: Cross multiply
    14,004.75x = 20,999.70 × 4,142.67
  4. Step 4: Simplify right side
    14,004.75x = 86,994,827.20
  5. Step 5: Solve for x
    x = 86,994,827.20/14,004.75
  6. Step 6: Final answer
    x = 6,211.81

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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.