Home / 14,072.51-21,109.92-4,211.65

Finding the Fourth Proportional to 14,072.51, 21,109.92 and 4,211.65

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Solution

The fourth proportional to 14,072.51, 21,109.92 and 4,211.65 is: 6,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.51 : 21,109.92 = 4,211.65 : x
  2. Step 2: Convert to fraction form
    14,072.51/21,109.92 = 4,211.65/x
  3. Step 3: Cross multiply
    14,072.51x = 21,109.92 × 4,211.65
  4. Step 4: Simplify right side
    14,072.51x = 88,907,486.42
  5. Step 5: Solve for x
    x = 88,907,486.42/14,072.51
  6. Step 6: Final answer
    x = 6,317.81

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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.