Home / 18,780.36-25,917.69-10,822.52

Finding the Fourth Proportional to 18,780.36, 25,917.69 and 10,822.52

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Solution

The fourth proportional to 18,780.36, 25,917.69 and 10,822.52 is: 14,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.36 : 25,917.69 = 10,822.52 : x
  2. Step 2: Convert to fraction form
    18,780.36/25,917.69 = 10,822.52/x
  3. Step 3: Cross multiply
    18,780.36x = 25,917.69 × 10,822.52
  4. Step 4: Simplify right side
    18,780.36x = 280,494,588.79
  5. Step 5: Solve for x
    x = 280,494,588.79/18,780.36
  6. Step 6: Final answer
    x = 14,935.53

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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.