Home / 18,780.66-25,917.27-10,822.82

Finding the Fourth Proportional to 18,780.66, 25,917.27 and 10,822.82

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Solution

The fourth proportional to 18,780.66, 25,917.27 and 10,822.82 is: 14,935.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.66 : 25,917.27 = 10,822.82 : x
  2. Step 2: Convert to fraction form
    18,780.66/25,917.27 = 10,822.82/x
  3. Step 3: Cross multiply
    18,780.66x = 25,917.27 × 10,822.82
  4. Step 4: Simplify right side
    18,780.66x = 280,497,777.93
  5. Step 5: Solve for x
    x = 280,497,777.93/18,780.66
  6. Step 6: Final answer
    x = 14,935.46

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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.