Home / 11,927.72-16,458.84-6,621.18

Finding the Fourth Proportional to 11,927.72, 16,458.84 and 6,621.18

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Solution

The fourth proportional to 11,927.72, 16,458.84 and 6,621.18 is: 9,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.72 : 16,458.84 = 6,621.18 : x
  2. Step 2: Convert to fraction form
    11,927.72/16,458.84 = 6,621.18/x
  3. Step 3: Cross multiply
    11,927.72x = 16,458.84 × 6,621.18
  4. Step 4: Simplify right side
    11,927.72x = 108,976,942.23
  5. Step 5: Solve for x
    x = 108,976,942.23/11,927.72
  6. Step 6: Final answer
    x = 9,136.44

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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.