Home / 14,172.08-21,270.84-7,922.96

Finding the Fourth Proportional to 14,172.08, 21,270.84 and 7,922.96

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Solution

The fourth proportional to 14,172.08, 21,270.84 and 7,922.96 is: 11,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.08 : 21,270.84 = 7,922.96 : x
  2. Step 2: Convert to fraction form
    14,172.08/21,270.84 = 7,922.96/x
  3. Step 3: Cross multiply
    14,172.08x = 21,270.84 × 7,922.96
  4. Step 4: Simplify right side
    14,172.08x = 168,528,014.49
  5. Step 5: Solve for x
    x = 168,528,014.49/14,172.08
  6. Step 6: Final answer
    x = 11,891.55

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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.