Home / 19,521.80-26,937.18-11,861.09

Finding the Fourth Proportional to 19,521.80, 26,937.18 and 11,861.09

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Solution

The fourth proportional to 19,521.80, 26,937.18 and 11,861.09 is: 16,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.80 : 26,937.18 = 11,861.09 : x
  2. Step 2: Convert to fraction form
    19,521.80/26,937.18 = 11,861.09/x
  3. Step 3: Cross multiply
    19,521.80x = 26,937.18 × 11,861.09
  4. Step 4: Simplify right side
    19,521.80x = 319,504,181.64
  5. Step 5: Solve for x
    x = 319,504,181.64/19,521.80
  6. Step 6: Final answer
    x = 16,366.54

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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.