Home / 19,877.45-29,814.34-6,728.31

Finding the Fourth Proportional to 19,877.45, 29,814.34 and 6,728.31

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Solution

The fourth proportional to 19,877.45, 29,814.34 and 6,728.31 is: 10,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.45 : 29,814.34 = 6,728.31 : x
  2. Step 2: Convert to fraction form
    19,877.45/29,814.34 = 6,728.31/x
  3. Step 3: Cross multiply
    19,877.45x = 29,814.34 × 6,728.31
  4. Step 4: Simplify right side
    19,877.45x = 200,600,121.97
  5. Step 5: Solve for x
    x = 200,600,121.97/19,877.45
  6. Step 6: Final answer
    x = 10,091.84

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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.