Home / 11,619.36-16,032.96-7,143.84

Finding the Fourth Proportional to 11,619.36, 16,032.96 and 7,143.84

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Solution

The fourth proportional to 11,619.36, 16,032.96 and 7,143.84 is: 9,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.36 : 16,032.96 = 7,143.84 : x
  2. Step 2: Convert to fraction form
    11,619.36/16,032.96 = 7,143.84/x
  3. Step 3: Cross multiply
    11,619.36x = 16,032.96 × 7,143.84
  4. Step 4: Simplify right side
    11,619.36x = 114,536,900.97
  5. Step 5: Solve for x
    x = 114,536,900.97/11,619.36
  6. Step 6: Final answer
    x = 9,857.42

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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.