Home / 12,922.80-19,370.09-5,531.66

Finding the Fourth Proportional to 12,922.80, 19,370.09 and 5,531.66

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Solution

The fourth proportional to 12,922.80, 19,370.09 and 5,531.66 is: 8,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.80 : 19,370.09 = 5,531.66 : x
  2. Step 2: Convert to fraction form
    12,922.80/19,370.09 = 5,531.66/x
  3. Step 3: Cross multiply
    12,922.80x = 19,370.09 × 5,531.66
  4. Step 4: Simplify right side
    12,922.80x = 107,148,627.54
  5. Step 5: Solve for x
    x = 107,148,627.54/12,922.80
  6. Step 6: Final answer
    x = 8,291.44

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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.