Home / 12,587.76-17,371.22-6,922.54

Finding the Fourth Proportional to 12,587.76, 17,371.22 and 6,922.54

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Solution

The fourth proportional to 12,587.76, 17,371.22 and 6,922.54 is: 9,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.76 : 17,371.22 = 6,922.54 : x
  2. Step 2: Convert to fraction form
    12,587.76/17,371.22 = 6,922.54/x
  3. Step 3: Cross multiply
    12,587.76x = 17,371.22 × 6,922.54
  4. Step 4: Simplify right side
    12,587.76x = 120,252,878.44
  5. Step 5: Solve for x
    x = 120,252,878.44/12,587.76
  6. Step 6: Final answer
    x = 9,553.16

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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.