Home / 14,148.78-21,223.16-4,786.29

Finding the Fourth Proportional to 14,148.78, 21,223.16 and 4,786.29

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Solution

The fourth proportional to 14,148.78, 21,223.16 and 4,786.29 is: 7,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.78 : 21,223.16 = 4,786.29 : x
  2. Step 2: Convert to fraction form
    14,148.78/21,223.16 = 4,786.29/x
  3. Step 3: Cross multiply
    14,148.78x = 21,223.16 × 4,786.29
  4. Step 4: Simplify right side
    14,148.78x = 101,580,219.42
  5. Step 5: Solve for x
    x = 101,580,219.42/14,148.78
  6. Step 6: Final answer
    x = 7,179.44

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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.