Home / 19,122.26-28,682.60-6,645.11

Finding the Fourth Proportional to 19,122.26, 28,682.60 and 6,645.11

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Solution

The fourth proportional to 19,122.26, 28,682.60 and 6,645.11 is: 9,967.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.26 : 28,682.60 = 6,645.11 : x
  2. Step 2: Convert to fraction form
    19,122.26/28,682.60 = 6,645.11/x
  3. Step 3: Cross multiply
    19,122.26x = 28,682.60 × 6,645.11
  4. Step 4: Simplify right side
    19,122.26x = 190,598,855.45
  5. Step 5: Solve for x
    x = 190,598,855.45/19,122.26
  6. Step 6: Final answer
    x = 9,967.38

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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.