Home / 13,110.06-18,081.44-9,274.86

Finding the Fourth Proportional to 13,110.06, 18,081.44 and 9,274.86

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Solution

The fourth proportional to 13,110.06, 18,081.44 and 9,274.86 is: 12,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.06 : 18,081.44 = 9,274.86 : x
  2. Step 2: Convert to fraction form
    13,110.06/18,081.44 = 9,274.86/x
  3. Step 3: Cross multiply
    13,110.06x = 18,081.44 × 9,274.86
  4. Step 4: Simplify right side
    13,110.06x = 167,702,824.60
  5. Step 5: Solve for x
    x = 167,702,824.60/13,110.06
  6. Step 6: Final answer
    x = 12,791.92

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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.