Home / 19,288.80-28,926-8,196.33

Finding the Fourth Proportional to 19,288.80, 28,926 and 8,196.33

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Solution

The fourth proportional to 19,288.80, 28,926 and 8,196.33 is: 12,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.80 : 28,926 = 8,196.33 : x
  2. Step 2: Convert to fraction form
    19,288.80/28,926 = 8,196.33/x
  3. Step 3: Cross multiply
    19,288.80x = 28,926 × 8,196.33
  4. Step 4: Simplify right side
    19,288.80x = 237,087,041.58
  5. Step 5: Solve for x
    x = 237,087,041.58/19,288.80
  6. Step 6: Final answer
    x = 12,291.44

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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.