Home / 12,675.27-17,473.58-8,690.07

Finding the Fourth Proportional to 12,675.27, 17,473.58 and 8,690.07

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Solution

The fourth proportional to 12,675.27, 17,473.58 and 8,690.07 is: 11,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.27 : 17,473.58 = 8,690.07 : x
  2. Step 2: Convert to fraction form
    12,675.27/17,473.58 = 8,690.07/x
  3. Step 3: Cross multiply
    12,675.27x = 17,473.58 × 8,690.07
  4. Step 4: Simplify right side
    12,675.27x = 151,846,589.90
  5. Step 5: Solve for x
    x = 151,846,589.90/12,675.27
  6. Step 6: Final answer
    x = 11,979.75

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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.