Home / 19,866.80-29,803.89-6,540.54

Finding the Fourth Proportional to 19,866.80, 29,803.89 and 6,540.54

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Solution

The fourth proportional to 19,866.80, 29,803.89 and 6,540.54 is: 9,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.80 : 29,803.89 = 6,540.54 : x
  2. Step 2: Convert to fraction form
    19,866.80/29,803.89 = 6,540.54/x
  3. Step 3: Cross multiply
    19,866.80x = 29,803.89 × 6,540.54
  4. Step 4: Simplify right side
    19,866.80x = 194,933,534.70
  5. Step 5: Solve for x
    x = 194,933,534.70/19,866.80
  6. Step 6: Final answer
    x = 9,812.03

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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.