Home / 19,302.06-28,945.80-8,213.97

Finding the Fourth Proportional to 19,302.06, 28,945.80 and 8,213.97

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Solution

The fourth proportional to 19,302.06, 28,945.80 and 8,213.97 is: 12,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.06 : 28,945.80 = 8,213.97 : x
  2. Step 2: Convert to fraction form
    19,302.06/28,945.80 = 8,213.97/x
  3. Step 3: Cross multiply
    19,302.06x = 28,945.80 × 8,213.97
  4. Step 4: Simplify right side
    19,302.06x = 237,759,932.83
  5. Step 5: Solve for x
    x = 237,759,932.83/19,302.06
  6. Step 6: Final answer
    x = 12,317.85

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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.