Home / 19,118.43-28,677.94-7,272.36

Finding the Fourth Proportional to 19,118.43, 28,677.94 and 7,272.36

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Solution

The fourth proportional to 19,118.43, 28,677.94 and 7,272.36 is: 10,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.43 : 28,677.94 = 7,272.36 : x
  2. Step 2: Convert to fraction form
    19,118.43/28,677.94 = 7,272.36/x
  3. Step 3: Cross multiply
    19,118.43x = 28,677.94 × 7,272.36
  4. Step 4: Simplify right side
    19,118.43x = 208,556,285.56
  5. Step 5: Solve for x
    x = 208,556,285.56/19,118.43
  6. Step 6: Final answer
    x = 10,908.65

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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.