Home / 17,929.62-26,896.14-4,782.78

Finding the Fourth Proportional to 17,929.62, 26,896.14 and 4,782.78

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Solution

The fourth proportional to 17,929.62, 26,896.14 and 4,782.78 is: 7,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,929.62 : 26,896.14 = 4,782.78 : x
  2. Step 2: Convert to fraction form
    17,929.62/26,896.14 = 4,782.78/x
  3. Step 3: Cross multiply
    17,929.62x = 26,896.14 × 4,782.78
  4. Step 4: Simplify right side
    17,929.62x = 128,638,320.47
  5. Step 5: Solve for x
    x = 128,638,320.47/17,929.62
  6. Step 6: Final answer
    x = 7,174.63

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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.