Home / 11,690.55-17,538.17-4,192.11

Finding the Fourth Proportional to 11,690.55, 17,538.17 and 4,192.11

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Solution

The fourth proportional to 11,690.55, 17,538.17 and 4,192.11 is: 6,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.55 : 17,538.17 = 4,192.11 : x
  2. Step 2: Convert to fraction form
    11,690.55/17,538.17 = 4,192.11/x
  3. Step 3: Cross multiply
    11,690.55x = 17,538.17 × 4,192.11
  4. Step 4: Simplify right side
    11,690.55x = 73,521,916.88
  5. Step 5: Solve for x
    x = 73,521,916.88/11,690.55
  6. Step 6: Final answer
    x = 6,289.00

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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.