Home / 14,126.78-21,190.34-4,266.16

Finding the Fourth Proportional to 14,126.78, 21,190.34 and 4,266.16

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Solution

The fourth proportional to 14,126.78, 21,190.34 and 4,266.16 is: 6,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.78 : 21,190.34 = 4,266.16 : x
  2. Step 2: Convert to fraction form
    14,126.78/21,190.34 = 4,266.16/x
  3. Step 3: Cross multiply
    14,126.78x = 21,190.34 × 4,266.16
  4. Step 4: Simplify right side
    14,126.78x = 90,401,338.58
  5. Step 5: Solve for x
    x = 90,401,338.58/14,126.78
  6. Step 6: Final answer
    x = 6,399.29

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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.