Home / 19,192.51-28,766.88-8,782.39

Finding the Fourth Proportional to 19,192.51, 28,766.88 and 8,782.39

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Solution

The fourth proportional to 19,192.51, 28,766.88 and 8,782.39 is: 13,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.51 : 28,766.88 = 8,782.39 : x
  2. Step 2: Convert to fraction form
    19,192.51/28,766.88 = 8,782.39/x
  3. Step 3: Cross multiply
    19,192.51x = 28,766.88 × 8,782.39
  4. Step 4: Simplify right side
    19,192.51x = 252,641,959.24
  5. Step 5: Solve for x
    x = 252,641,959.24/19,192.51
  6. Step 6: Final answer
    x = 13,163.57

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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.