Home / 12,196.05-18,272.21-11,539.95

Finding the Fourth Proportional to 12,196.05, 18,272.21 and 11,539.95

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Solution

The fourth proportional to 12,196.05, 18,272.21 and 11,539.95 is: 17,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.05 : 18,272.21 = 11,539.95 : x
  2. Step 2: Convert to fraction form
    12,196.05/18,272.21 = 11,539.95/x
  3. Step 3: Cross multiply
    12,196.05x = 18,272.21 × 11,539.95
  4. Step 4: Simplify right side
    12,196.05x = 210,860,332.09
  5. Step 5: Solve for x
    x = 210,860,332.09/12,196.05
  6. Step 6: Final answer
    x = 17,289.23

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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.