Home / 10,992.38-16,461.21-7,690.01

Finding the Fourth Proportional to 10,992.38, 16,461.21 and 7,690.01

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Solution

The fourth proportional to 10,992.38, 16,461.21 and 7,690.01 is: 11,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.38 : 16,461.21 = 7,690.01 : x
  2. Step 2: Convert to fraction form
    10,992.38/16,461.21 = 7,690.01/x
  3. Step 3: Cross multiply
    10,992.38x = 16,461.21 × 7,690.01
  4. Step 4: Simplify right side
    10,992.38x = 126,586,787.21
  5. Step 5: Solve for x
    x = 126,586,787.21/10,992.38
  6. Step 6: Final answer
    x = 11,515.87

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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.