Home / 12,540.26-17,305.45-6,875.36

Finding the Fourth Proportional to 12,540.26, 17,305.45 and 6,875.36

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Solution

The fourth proportional to 12,540.26, 17,305.45 and 6,875.36 is: 9,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.26 : 17,305.45 = 6,875.36 : x
  2. Step 2: Convert to fraction form
    12,540.26/17,305.45 = 6,875.36/x
  3. Step 3: Cross multiply
    12,540.26x = 17,305.45 × 6,875.36
  4. Step 4: Simplify right side
    12,540.26x = 118,981,198.71
  5. Step 5: Solve for x
    x = 118,981,198.71/12,540.26
  6. Step 6: Final answer
    x = 9,487.94

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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.