Home / 12,540.09-17,305.52-6,875.36

Finding the Fourth Proportional to 12,540.09, 17,305.52 and 6,875.36

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Solution

The fourth proportional to 12,540.09, 17,305.52 and 6,875.36 is: 9,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.09 : 17,305.52 = 6,875.36 : x
  2. Step 2: Convert to fraction form
    12,540.09/17,305.52 = 6,875.36/x
  3. Step 3: Cross multiply
    12,540.09x = 17,305.52 × 6,875.36
  4. Step 4: Simplify right side
    12,540.09x = 118,981,559.08
  5. Step 5: Solve for x
    x = 118,981,559.08/12,540.09
  6. Step 6: Final answer
    x = 9,488.09

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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.