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Finding the Fourth Proportional to 12,030, 16,601.40 and 7,062

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Solution

The fourth proportional to 12,030, 16,601.40 and 7,062 is: 9,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030 : 16,601.40 = 7,062 : x
  2. Step 2: Convert to fraction form
    12,030/16,601.40 = 7,062/x
  3. Step 3: Cross multiply
    12,030x = 16,601.40 × 7,062
  4. Step 4: Simplify right side
    12,030x = 117,239,086.80
  5. Step 5: Solve for x
    x = 117,239,086.80/12,030
  6. Step 6: Final answer
    x = 9,745.56

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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.