Home / 12,112.51-18,160.38-6,177.88

Finding the Fourth Proportional to 12,112.51, 18,160.38 and 6,177.88

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Solution

The fourth proportional to 12,112.51, 18,160.38 and 6,177.88 is: 9,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.51 : 18,160.38 = 6,177.88 : x
  2. Step 2: Convert to fraction form
    12,112.51/18,160.38 = 6,177.88/x
  3. Step 3: Cross multiply
    12,112.51x = 18,160.38 × 6,177.88
  4. Step 4: Simplify right side
    12,112.51x = 112,192,648.39
  5. Step 5: Solve for x
    x = 112,192,648.39/12,112.51
  6. Step 6: Final answer
    x = 9,262.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.