Home / 11,745.29-17,618.25-2,980.89

Finding the Fourth Proportional to 11,745.29, 17,618.25 and 2,980.89

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Solution

The fourth proportional to 11,745.29, 17,618.25 and 2,980.89 is: 4,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.29 : 17,618.25 = 2,980.89 : x
  2. Step 2: Convert to fraction form
    11,745.29/17,618.25 = 2,980.89/x
  3. Step 3: Cross multiply
    11,745.29x = 17,618.25 × 2,980.89
  4. Step 4: Simplify right side
    11,745.29x = 52,518,065.24
  5. Step 5: Solve for x
    x = 52,518,065.24/11,745.29
  6. Step 6: Final answer
    x = 4,471.41

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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.