Home / 13,823.52-19,078.92-8,157.96

Finding the Fourth Proportional to 13,823.52, 19,078.92 and 8,157.96

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Solution

The fourth proportional to 13,823.52, 19,078.92 and 8,157.96 is: 11,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.52 : 19,078.92 = 8,157.96 : x
  2. Step 2: Convert to fraction form
    13,823.52/19,078.92 = 8,157.96/x
  3. Step 3: Cross multiply
    13,823.52x = 19,078.92 × 8,157.96
  4. Step 4: Simplify right side
    13,823.52x = 155,645,066.20
  5. Step 5: Solve for x
    x = 155,645,066.20/13,823.52
  6. Step 6: Final answer
    x = 11,259.44

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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.