Home / 12,432.72-17,148.60-11,901.36

Finding the Fourth Proportional to 12,432.72, 17,148.60 and 11,901.36

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Solution

The fourth proportional to 12,432.72, 17,148.60 and 11,901.36 is: 16,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.72 : 17,148.60 = 11,901.36 : x
  2. Step 2: Convert to fraction form
    12,432.72/17,148.60 = 11,901.36/x
  3. Step 3: Cross multiply
    12,432.72x = 17,148.60 × 11,901.36
  4. Step 4: Simplify right side
    12,432.72x = 204,091,662.10
  5. Step 5: Solve for x
    x = 204,091,662.10/12,432.72
  6. Step 6: Final answer
    x = 16,415.69

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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.