Home / 12,540.33-17,305.65-6,875.43

Finding the Fourth Proportional to 12,540.33, 17,305.65 and 6,875.43

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Solution

The fourth proportional to 12,540.33, 17,305.65 and 6,875.43 is: 9,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.33 : 17,305.65 = 6,875.43 : x
  2. Step 2: Convert to fraction form
    12,540.33/17,305.65 = 6,875.43/x
  3. Step 3: Cross multiply
    12,540.33x = 17,305.65 × 6,875.43
  4. Step 4: Simplify right side
    12,540.33x = 118,983,785.18
  5. Step 5: Solve for x
    x = 118,983,785.18/12,540.33
  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.