Home / 11,986.15-16,503.24-10,190.09

Finding the Fourth Proportional to 11,986.15, 16,503.24 and 10,190.09

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Solution

The fourth proportional to 11,986.15, 16,503.24 and 10,190.09 is: 14,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.15 : 16,503.24 = 10,190.09 : x
  2. Step 2: Convert to fraction form
    11,986.15/16,503.24 = 10,190.09/x
  3. Step 3: Cross multiply
    11,986.15x = 16,503.24 × 10,190.09
  4. Step 4: Simplify right side
    11,986.15x = 168,169,500.89
  5. Step 5: Solve for x
    x = 168,169,500.89/11,986.15
  6. Step 6: Final answer
    x = 14,030.32

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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.