Home / 18,571.50-27,866.80-12,335.82

Finding the Fourth Proportional to 18,571.50, 27,866.80 and 12,335.82

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Solution

The fourth proportional to 18,571.50, 27,866.80 and 12,335.82 is: 18,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.50 : 27,866.80 = 12,335.82 : x
  2. Step 2: Convert to fraction form
    18,571.50/27,866.80 = 12,335.82/x
  3. Step 3: Cross multiply
    18,571.50x = 27,866.80 × 12,335.82
  4. Step 4: Simplify right side
    18,571.50x = 343,759,828.78
  5. Step 5: Solve for x
    x = 343,759,828.78/18,571.50
  6. Step 6: Final answer
    x = 18,510.07

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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.