Home / 11,143.93-15,378.57-6,108.36

Finding the Fourth Proportional to 11,143.93, 15,378.57 and 6,108.36

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Solution

The fourth proportional to 11,143.93, 15,378.57 and 6,108.36 is: 8,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.93 : 15,378.57 = 6,108.36 : x
  2. Step 2: Convert to fraction form
    11,143.93/15,378.57 = 6,108.36/x
  3. Step 3: Cross multiply
    11,143.93x = 15,378.57 × 6,108.36
  4. Step 4: Simplify right side
    11,143.93x = 93,937,811.30
  5. Step 5: Solve for x
    x = 93,937,811.30/11,143.93
  6. Step 6: Final answer
    x = 8,429.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.