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Finding the Fourth Proportional to 14,408.44, 21,605.15 and 6,801.78

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Solution

The fourth proportional to 14,408.44, 21,605.15 and 6,801.78 is: 10,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.44 : 21,605.15 = 6,801.78 : x
  2. Step 2: Convert to fraction form
    14,408.44/21,605.15 = 6,801.78/x
  3. Step 3: Cross multiply
    14,408.44x = 21,605.15 × 6,801.78
  4. Step 4: Simplify right side
    14,408.44x = 146,953,536.93
  5. Step 5: Solve for x
    x = 146,953,536.93/14,408.44
  6. Step 6: Final answer
    x = 10,199.13

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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.