Home / 11,927.35-16,456.40-7,455.65

Finding the Fourth Proportional to 11,927.35, 16,456.40 and 7,455.65

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Solution

The fourth proportional to 11,927.35, 16,456.40 and 7,455.65 is: 10,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.35 : 16,456.40 = 7,455.65 : x
  2. Step 2: Convert to fraction form
    11,927.35/16,456.40 = 7,455.65/x
  3. Step 3: Cross multiply
    11,927.35x = 16,456.40 × 7,455.65
  4. Step 4: Simplify right side
    11,927.35x = 122,693,158.66
  5. Step 5: Solve for x
    x = 122,693,158.66/11,927.35
  6. Step 6: Final answer
    x = 10,286.71

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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.