Home / 11,926.78-16,455.63-7,455.09

Finding the Fourth Proportional to 11,926.78, 16,455.63 and 7,455.09

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Solution

The fourth proportional to 11,926.78, 16,455.63 and 7,455.09 is: 10,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.78 : 16,455.63 = 7,455.09 : x
  2. Step 2: Convert to fraction form
    11,926.78/16,455.63 = 7,455.09/x
  3. Step 3: Cross multiply
    11,926.78x = 16,455.63 × 7,455.09
  4. Step 4: Simplify right side
    11,926.78x = 122,678,202.66
  5. Step 5: Solve for x
    x = 122,678,202.66/11,926.78
  6. Step 6: Final answer
    x = 10,285.94

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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.