Home / 10,091.22-13,926.35-8,409.81

Finding the Fourth Proportional to 10,091.22, 13,926.35 and 8,409.81

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Solution

The fourth proportional to 10,091.22, 13,926.35 and 8,409.81 is: 11,605.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.22 : 13,926.35 = 8,409.81 : x
  2. Step 2: Convert to fraction form
    10,091.22/13,926.35 = 8,409.81/x
  3. Step 3: Cross multiply
    10,091.22x = 13,926.35 × 8,409.81
  4. Step 4: Simplify right side
    10,091.22x = 117,117,915.44
  5. Step 5: Solve for x
    x = 117,117,915.44/10,091.22
  6. Step 6: Final answer
    x = 11,605.92

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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.