Home / 14,128.20-21,192.46-4,267.56

Finding the Fourth Proportional to 14,128.20, 21,192.46 and 4,267.56

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Solution

The fourth proportional to 14,128.20, 21,192.46 and 4,267.56 is: 6,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.20 : 21,192.46 = 4,267.56 : x
  2. Step 2: Convert to fraction form
    14,128.20/21,192.46 = 4,267.56/x
  3. Step 3: Cross multiply
    14,128.20x = 21,192.46 × 4,267.56
  4. Step 4: Simplify right side
    14,128.20x = 90,440,094.60
  5. Step 5: Solve for x
    x = 90,440,094.60/14,128.20
  6. Step 6: Final answer
    x = 6,401.39

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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.