Home / 12,678.52-19,016.58-3,911.08

Finding the Fourth Proportional to 12,678.52, 19,016.58 and 3,911.08

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Solution

The fourth proportional to 12,678.52, 19,016.58 and 3,911.08 is: 5,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.52 : 19,016.58 = 3,911.08 : x
  2. Step 2: Convert to fraction form
    12,678.52/19,016.58 = 3,911.08/x
  3. Step 3: Cross multiply
    12,678.52x = 19,016.58 × 3,911.08
  4. Step 4: Simplify right side
    12,678.52x = 74,375,365.71
  5. Step 5: Solve for x
    x = 74,375,365.71/12,678.52
  6. Step 6: Final answer
    x = 5,866.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.