Home / 14,168.40-21,220.20-7,234.80

Finding the Fourth Proportional to 14,168.40, 21,220.20 and 7,234.80

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Solution

The fourth proportional to 14,168.40, 21,220.20 and 7,234.80 is: 10,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.40 : 21,220.20 = 7,234.80 : x
  2. Step 2: Convert to fraction form
    14,168.40/21,220.20 = 7,234.80/x
  3. Step 3: Cross multiply
    14,168.40x = 21,220.20 × 7,234.80
  4. Step 4: Simplify right side
    14,168.40x = 153,523,902.96
  5. Step 5: Solve for x
    x = 153,523,902.96/14,168.40
  6. Step 6: Final answer
    x = 10,835.66

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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.