Home / 11,927.25-16,458.12-6,621.35

Finding the Fourth Proportional to 11,927.25, 16,458.12 and 6,621.35

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Solution

The fourth proportional to 11,927.25, 16,458.12 and 6,621.35 is: 9,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.25 : 16,458.12 = 6,621.35 : x
  2. Step 2: Convert to fraction form
    11,927.25/16,458.12 = 6,621.35/x
  3. Step 3: Cross multiply
    11,927.25x = 16,458.12 × 6,621.35
  4. Step 4: Simplify right side
    11,927.25x = 108,974,890.57
  5. Step 5: Solve for x
    x = 108,974,890.57/11,927.25
  6. Step 6: Final answer
    x = 9,136.63

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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.