Home / 12,713.20-19,069.80-4,922.02

Finding the Fourth Proportional to 12,713.20, 19,069.80 and 4,922.02

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Solution

The fourth proportional to 12,713.20, 19,069.80 and 4,922.02 is: 7,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.20 : 19,069.80 = 4,922.02 : x
  2. Step 2: Convert to fraction form
    12,713.20/19,069.80 = 4,922.02/x
  3. Step 3: Cross multiply
    12,713.20x = 19,069.80 × 4,922.02
  4. Step 4: Simplify right side
    12,713.20x = 93,861,876.64
  5. Step 5: Solve for x
    x = 93,861,876.64/12,713.20
  6. Step 6: Final answer
    x = 7,383.02

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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.