Home / 12,277.20-18,436.86-11,723.16

Finding the Fourth Proportional to 12,277.20, 18,436.86 and 11,723.16

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Solution

The fourth proportional to 12,277.20, 18,436.86 and 11,723.16 is: 17,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.20 : 18,436.86 = 11,723.16 : x
  2. Step 2: Convert to fraction form
    12,277.20/18,436.86 = 11,723.16/x
  3. Step 3: Cross multiply
    12,277.20x = 18,436.86 × 11,723.16
  4. Step 4: Simplify right side
    12,277.20x = 216,138,259.68
  5. Step 5: Solve for x
    x = 216,138,259.68/12,277.20
  6. Step 6: Final answer
    x = 17,604.85

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1.5x scale

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.