Home / 12,784.88-19,177.30-4,020.56

Finding the Fourth Proportional to 12,784.88, 19,177.30 and 4,020.56

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Solution

The fourth proportional to 12,784.88, 19,177.30 and 4,020.56 is: 6,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.88 : 19,177.30 = 4,020.56 : x
  2. Step 2: Convert to fraction form
    12,784.88/19,177.30 = 4,020.56/x
  3. Step 3: Cross multiply
    12,784.88x = 19,177.30 × 4,020.56
  4. Step 4: Simplify right side
    12,784.88x = 77,103,485.29
  5. Step 5: Solve for x
    x = 77,103,485.29/12,784.88
  6. Step 6: Final answer
    x = 6,030.83

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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.