Home / 16,990.65-25,485.96-11,145.89

Finding the Fourth Proportional to 16,990.65, 25,485.96 and 11,145.89

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Solution

The fourth proportional to 16,990.65, 25,485.96 and 11,145.89 is: 16,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.65 : 25,485.96 = 11,145.89 : x
  2. Step 2: Convert to fraction form
    16,990.65/25,485.96 = 11,145.89/x
  3. Step 3: Cross multiply
    16,990.65x = 25,485.96 × 11,145.89
  4. Step 4: Simplify right side
    16,990.65x = 284,063,706.70
  5. Step 5: Solve for x
    x = 284,063,706.70/16,990.65
  6. Step 6: Final answer
    x = 16,718.83

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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.