Home / 14,121.07-21,164.50-7,874.44

Finding the Fourth Proportional to 14,121.07, 21,164.50 and 7,874.44

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Solution

The fourth proportional to 14,121.07, 21,164.50 and 7,874.44 is: 11,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.07 : 21,164.50 = 7,874.44 : x
  2. Step 2: Convert to fraction form
    14,121.07/21,164.50 = 7,874.44/x
  3. Step 3: Cross multiply
    14,121.07x = 21,164.50 × 7,874.44
  4. Step 4: Simplify right side
    14,121.07x = 166,658,585.38
  5. Step 5: Solve for x
    x = 166,658,585.38/14,121.07
  6. Step 6: Final answer
    x = 11,802.12

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1.5x scale

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.