Home / 18,846.39-28,236.30-11,435.79

Finding the Fourth Proportional to 18,846.39, 28,236.30 and 11,435.79

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Solution

The fourth proportional to 18,846.39, 28,236.30 and 11,435.79 is: 17,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.39 : 28,236.30 = 11,435.79 : x
  2. Step 2: Convert to fraction form
    18,846.39/28,236.30 = 11,435.79/x
  3. Step 3: Cross multiply
    18,846.39x = 28,236.30 × 11,435.79
  4. Step 4: Simplify right side
    18,846.39x = 322,904,397.18
  5. Step 5: Solve for x
    x = 322,904,397.18/18,846.39
  6. Step 6: Final answer
    x = 17,133.49

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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.