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Finding the Fourth Proportional to 12,030.39, 18,041.48 and 6,105

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Solution

The fourth proportional to 12,030.39, 18,041.48 and 6,105 is: 9,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.39 : 18,041.48 = 6,105 : x
  2. Step 2: Convert to fraction form
    12,030.39/18,041.48 = 6,105/x
  3. Step 3: Cross multiply
    12,030.39x = 18,041.48 × 6,105
  4. Step 4: Simplify right side
    12,030.39x = 110,143,235.40
  5. Step 5: Solve for x
    x = 110,143,235.40/12,030.39
  6. Step 6: Final answer
    x = 9,155.42

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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.