Home / 19,401.98-26,767.72-12,691.44

Finding the Fourth Proportional to 19,401.98, 26,767.72 and 12,691.44

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Solution

The fourth proportional to 19,401.98, 26,767.72 and 12,691.44 is: 17,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.98 : 26,767.72 = 12,691.44 : x
  2. Step 2: Convert to fraction form
    19,401.98/26,767.72 = 12,691.44/x
  3. Step 3: Cross multiply
    19,401.98x = 26,767.72 × 12,691.44
  4. Step 4: Simplify right side
    19,401.98x = 339,720,912.32
  5. Step 5: Solve for x
    x = 339,720,912.32/19,401.98
  6. Step 6: Final answer
    x = 17,509.60

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1.5x scale

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.