Home / 12,961.01-19,345.31-11,174.42

Finding the Fourth Proportional to 12,961.01, 19,345.31 and 11,174.42

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Solution

The fourth proportional to 12,961.01, 19,345.31 and 11,174.42 is: 16,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.01 : 19,345.31 = 11,174.42 : x
  2. Step 2: Convert to fraction form
    12,961.01/19,345.31 = 11,174.42/x
  3. Step 3: Cross multiply
    12,961.01x = 19,345.31 × 11,174.42
  4. Step 4: Simplify right side
    12,961.01x = 216,172,466.37
  5. Step 5: Solve for x
    x = 216,172,466.37/12,961.01
  6. Step 6: Final answer
    x = 16,678.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.