Home / 11,986.96-16,558.14-10,869.16

Finding the Fourth Proportional to 11,986.96, 16,558.14 and 10,869.16

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Solution

The fourth proportional to 11,986.96, 16,558.14 and 10,869.16 is: 15,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.96 : 16,558.14 = 10,869.16 : x
  2. Step 2: Convert to fraction form
    11,986.96/16,558.14 = 10,869.16/x
  3. Step 3: Cross multiply
    11,986.96x = 16,558.14 × 10,869.16
  4. Step 4: Simplify right side
    11,986.96x = 179,973,072.96
  5. Step 5: Solve for x
    x = 179,973,072.96/11,986.96
  6. Step 6: Final answer
    x = 15,014.07

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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.