Home / 11,902.16-17,855.06-3,137.76

Finding the Fourth Proportional to 11,902.16, 17,855.06 and 3,137.76

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Solution

The fourth proportional to 11,902.16, 17,855.06 and 3,137.76 is: 4,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.16 : 17,855.06 = 3,137.76 : x
  2. Step 2: Convert to fraction form
    11,902.16/17,855.06 = 3,137.76/x
  3. Step 3: Cross multiply
    11,902.16x = 17,855.06 × 3,137.76
  4. Step 4: Simplify right side
    11,902.16x = 56,024,877.38
  5. Step 5: Solve for x
    x = 56,024,877.38/11,902.16
  6. Step 6: Final answer
    x = 4,707.12

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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.