Home / 12,922.26-19,346.49-10,122.90

Finding the Fourth Proportional to 12,922.26, 19,346.49 and 10,122.90

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Solution

The fourth proportional to 12,922.26, 19,346.49 and 10,122.90 is: 15,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.26 : 19,346.49 = 10,122.90 : x
  2. Step 2: Convert to fraction form
    12,922.26/19,346.49 = 10,122.90/x
  3. Step 3: Cross multiply
    12,922.26x = 19,346.49 × 10,122.90
  4. Step 4: Simplify right side
    12,922.26x = 195,842,583.62
  5. Step 5: Solve for x
    x = 195,842,583.62/12,922.26
  6. Step 6: Final answer
    x = 15,155.44

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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.