Home / 12,029.72-18,039.96-4,130.76

Finding the Fourth Proportional to 12,029.72, 18,039.96 and 4,130.76

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Solution

The fourth proportional to 12,029.72, 18,039.96 and 4,130.76 is: 6,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.72 : 18,039.96 = 4,130.76 : x
  2. Step 2: Convert to fraction form
    12,029.72/18,039.96 = 4,130.76/x
  3. Step 3: Cross multiply
    12,029.72x = 18,039.96 × 4,130.76
  4. Step 4: Simplify right side
    12,029.72x = 74,518,812.82
  5. Step 5: Solve for x
    x = 74,518,812.82/12,029.72
  6. Step 6: Final answer
    x = 6,194.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.