Home / 19,272.84-28,912.55-6,621.99

Finding the Fourth Proportional to 19,272.84, 28,912.55 and 6,621.99

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Solution

The fourth proportional to 19,272.84, 28,912.55 and 6,621.99 is: 9,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.84 : 28,912.55 = 6,621.99 : x
  2. Step 2: Convert to fraction form
    19,272.84/28,912.55 = 6,621.99/x
  3. Step 3: Cross multiply
    19,272.84x = 28,912.55 × 6,621.99
  4. Step 4: Simplify right side
    19,272.84x = 191,458,616.97
  5. Step 5: Solve for x
    x = 191,458,616.97/19,272.84
  6. Step 6: Final answer
    x = 9,934.12

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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.