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Finding the Fourth Proportional to 12,469.82, 18,712.82 and 6,630.53

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Solution

The fourth proportional to 12,469.82, 18,712.82 and 6,630.53 is: 9,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.82 : 18,712.82 = 6,630.53 : x
  2. Step 2: Convert to fraction form
    12,469.82/18,712.82 = 6,630.53/x
  3. Step 3: Cross multiply
    12,469.82x = 18,712.82 × 6,630.53
  4. Step 4: Simplify right side
    12,469.82x = 124,075,837.41
  5. Step 5: Solve for x
    x = 124,075,837.41/12,469.82
  6. Step 6: Final answer
    x = 9,950.09

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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.