Home / 14,129.12-21,193.32-6,738.80

Finding the Fourth Proportional to 14,129.12, 21,193.32 and 6,738.80

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Solution

The fourth proportional to 14,129.12, 21,193.32 and 6,738.80 is: 10,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.12 : 21,193.32 = 6,738.80 : x
  2. Step 2: Convert to fraction form
    14,129.12/21,193.32 = 6,738.80/x
  3. Step 3: Cross multiply
    14,129.12x = 21,193.32 × 6,738.80
  4. Step 4: Simplify right side
    14,129.12x = 142,817,544.82
  5. Step 5: Solve for x
    x = 142,817,544.82/14,129.12
  6. Step 6: Final answer
    x = 10,108.03

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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.