Home / 19,909.86-27,488.43-12,367.11

Finding the Fourth Proportional to 19,909.86, 27,488.43 and 12,367.11

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Solution

The fourth proportional to 19,909.86, 27,488.43 and 12,367.11 is: 17,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.86 : 27,488.43 = 12,367.11 : x
  2. Step 2: Convert to fraction form
    19,909.86/27,488.43 = 12,367.11/x
  3. Step 3: Cross multiply
    19,909.86x = 27,488.43 × 12,367.11
  4. Step 4: Simplify right side
    19,909.86x = 339,952,437.54
  5. Step 5: Solve for x
    x = 339,952,437.54/19,909.86
  6. Step 6: Final answer
    x = 17,074.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.