Home / 19,287.37-28,926.03-8,188.33

Finding the Fourth Proportional to 19,287.37, 28,926.03 and 8,188.33

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Solution

The fourth proportional to 19,287.37, 28,926.03 and 8,188.33 is: 12,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.37 : 28,926.03 = 8,188.33 : x
  2. Step 2: Convert to fraction form
    19,287.37/28,926.03 = 8,188.33/x
  3. Step 3: Cross multiply
    19,287.37x = 28,926.03 × 8,188.33
  4. Step 4: Simplify right side
    19,287.37x = 236,855,879.23
  5. Step 5: Solve for x
    x = 236,855,879.23/19,287.37
  6. Step 6: Final answer
    x = 12,280.36

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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.