Home / 15,290.83-22,912.62-12,939.94

Finding the Fourth Proportional to 15,290.83, 22,912.62 and 12,939.94

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Solution

The fourth proportional to 15,290.83, 22,912.62 and 12,939.94 is: 19,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.83 : 22,912.62 = 12,939.94 : x
  2. Step 2: Convert to fraction form
    15,290.83/22,912.62 = 12,939.94/x
  3. Step 3: Cross multiply
    15,290.83x = 22,912.62 × 12,939.94
  4. Step 4: Simplify right side
    15,290.83x = 296,487,928.04
  5. Step 5: Solve for x
    x = 296,487,928.04/15,290.83
  6. Step 6: Final answer
    x = 19,389.92

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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.