Home / 19,400.98-26,766.34-12,690.44

Finding the Fourth Proportional to 19,400.98, 26,766.34 and 12,690.44

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Solution

The fourth proportional to 19,400.98, 26,766.34 and 12,690.44 is: 17,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.98 : 26,766.34 = 12,690.44 : x
  2. Step 2: Convert to fraction form
    19,400.98/26,766.34 = 12,690.44/x
  3. Step 3: Cross multiply
    19,400.98x = 26,766.34 × 12,690.44
  4. Step 4: Simplify right side
    19,400.98x = 339,676,631.79
  5. Step 5: Solve for x
    x = 339,676,631.79/19,400.98
  6. Step 6: Final answer
    x = 17,508.22

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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.