Home / 12,824.48-17,670.28-8,625.44

Finding the Fourth Proportional to 12,824.48, 17,670.28 and 8,625.44

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Solution

The fourth proportional to 12,824.48, 17,670.28 and 8,625.44 is: 11,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,824.48 : 17,670.28 = 8,625.44 : x
  2. Step 2: Convert to fraction form
    12,824.48/17,670.28 = 8,625.44/x
  3. Step 3: Cross multiply
    12,824.48x = 17,670.28 × 8,625.44
  4. Step 4: Simplify right side
    12,824.48x = 152,413,939.92
  5. Step 5: Solve for x
    x = 152,413,939.92/12,824.48
  6. Step 6: Final answer
    x = 11,884.61

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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.