Home / 17,115.20-23,625.47-12,878.58

Finding the Fourth Proportional to 17,115.20, 23,625.47 and 12,878.58

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Solution

The fourth proportional to 17,115.20, 23,625.47 and 12,878.58 is: 17,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.20 : 23,625.47 = 12,878.58 : x
  2. Step 2: Convert to fraction form
    17,115.20/23,625.47 = 12,878.58/x
  3. Step 3: Cross multiply
    17,115.20x = 23,625.47 × 12,878.58
  4. Step 4: Simplify right side
    17,115.20x = 304,262,505.43
  5. Step 5: Solve for x
    x = 304,262,505.43/17,115.20
  6. Step 6: Final answer
    x = 17,777.33

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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.