Home / 9,431.28-14,067.36-8,188.92

Finding the Fourth Proportional to 9,431.28, 14,067.36 and 8,188.92

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Solution

The fourth proportional to 9,431.28, 14,067.36 and 8,188.92 is: 12,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.28 : 14,067.36 = 8,188.92 : x
  2. Step 2: Convert to fraction form
    9,431.28/14,067.36 = 8,188.92/x
  3. Step 3: Cross multiply
    9,431.28x = 14,067.36 × 8,188.92
  4. Step 4: Simplify right side
    9,431.28x = 115,196,485.65
  5. Step 5: Solve for x
    x = 115,196,485.65/9,431.28
  6. Step 6: Final answer
    x = 12,214.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.