Home / 13,811.92-19,062.62-8,147.30

Finding the Fourth Proportional to 13,811.92, 19,062.62 and 8,147.30

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Solution

The fourth proportional to 13,811.92, 19,062.62 and 8,147.30 is: 11,244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.92 : 19,062.62 = 8,147.30 : x
  2. Step 2: Convert to fraction form
    13,811.92/19,062.62 = 8,147.30/x
  3. Step 3: Cross multiply
    13,811.92x = 19,062.62 × 8,147.30
  4. Step 4: Simplify right side
    13,811.92x = 155,308,885.66
  5. Step 5: Solve for x
    x = 155,308,885.66/13,811.92
  6. Step 6: Final answer
    x = 11,244.56

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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.