Home / 13,990.62-19,306.44-8,021.94

Finding the Fourth Proportional to 13,990.62, 19,306.44 and 8,021.94

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Solution

The fourth proportional to 13,990.62, 19,306.44 and 8,021.94 is: 11,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.62 : 19,306.44 = 8,021.94 : x
  2. Step 2: Convert to fraction form
    13,990.62/19,306.44 = 8,021.94/x
  3. Step 3: Cross multiply
    13,990.62x = 19,306.44 × 8,021.94
  4. Step 4: Simplify right side
    13,990.62x = 154,875,103.29
  5. Step 5: Solve for x
    x = 154,875,103.29/13,990.62
  6. Step 6: Final answer
    x = 11,069.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.