Home / 11,639.36-16,060.56-7,163.84

Finding the Fourth Proportional to 11,639.36, 16,060.56 and 7,163.84

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Solution

The fourth proportional to 11,639.36, 16,060.56 and 7,163.84 is: 9,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.36 : 16,060.56 = 7,163.84 : x
  2. Step 2: Convert to fraction form
    11,639.36/16,060.56 = 7,163.84/x
  3. Step 3: Cross multiply
    11,639.36x = 16,060.56 × 7,163.84
  4. Step 4: Simplify right side
    11,639.36x = 115,055,282.15
  5. Step 5: Solve for x
    x = 115,055,282.15/11,639.36
  6. Step 6: Final answer
    x = 9,885.02

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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.