Home / 12,128.97-16,735.77-6,822.93

Finding the Fourth Proportional to 12,128.97, 16,735.77 and 6,822.93

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Solution

The fourth proportional to 12,128.97, 16,735.77 and 6,822.93 is: 9,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.97 : 16,735.77 = 6,822.93 : x
  2. Step 2: Convert to fraction form
    12,128.97/16,735.77 = 6,822.93/x
  3. Step 3: Cross multiply
    12,128.97x = 16,735.77 × 6,822.93
  4. Step 4: Simplify right side
    12,128.97x = 114,186,987.21
  5. Step 5: Solve for x
    x = 114,186,987.21/12,128.97
  6. Step 6: Final answer
    x = 9,414.40

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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.