Home / 12,702.42-19,029.87-11,329.74

Finding the Fourth Proportional to 12,702.42, 19,029.87 and 11,329.74

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Solution

The fourth proportional to 12,702.42, 19,029.87 and 11,329.74 is: 16,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.42 : 19,029.87 = 11,329.74 : x
  2. Step 2: Convert to fraction form
    12,702.42/19,029.87 = 11,329.74/x
  3. Step 3: Cross multiply
    12,702.42x = 19,029.87 × 11,329.74
  4. Step 4: Simplify right side
    12,702.42x = 215,603,479.33
  5. Step 5: Solve for x
    x = 215,603,479.33/12,702.42
  6. Step 6: Final answer
    x = 16,973.42

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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.