Home / 14,212.96-21,319.71-4,855.12

Finding the Fourth Proportional to 14,212.96, 21,319.71 and 4,855.12

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Solution

The fourth proportional to 14,212.96, 21,319.71 and 4,855.12 is: 7,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.96 : 21,319.71 = 4,855.12 : x
  2. Step 2: Convert to fraction form
    14,212.96/21,319.71 = 4,855.12/x
  3. Step 3: Cross multiply
    14,212.96x = 21,319.71 × 4,855.12
  4. Step 4: Simplify right side
    14,212.96x = 103,509,619.54
  5. Step 5: Solve for x
    x = 103,509,619.54/14,212.96
  6. Step 6: Final answer
    x = 7,282.77

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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.