Home / 19,112.26-28,670.20-7,426.38

Finding the Fourth Proportional to 19,112.26, 28,670.20 and 7,426.38

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Solution

The fourth proportional to 19,112.26, 28,670.20 and 7,426.38 is: 11,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.26 : 28,670.20 = 7,426.38 : x
  2. Step 2: Convert to fraction form
    19,112.26/28,670.20 = 7,426.38/x
  3. Step 3: Cross multiply
    19,112.26x = 28,670.20 × 7,426.38
  4. Step 4: Simplify right side
    19,112.26x = 212,915,799.88
  5. Step 5: Solve for x
    x = 212,915,799.88/19,112.26
  6. Step 6: Final answer
    x = 11,140.27

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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.