Home / 12,040.80-18,063.71-4,143.00

Finding the Fourth Proportional to 12,040.80, 18,063.71 and 4,143.00

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Solution

The fourth proportional to 12,040.80, 18,063.71 and 4,143.00 is: 6,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.80 : 18,063.71 = 4,143.00 : x
  2. Step 2: Convert to fraction form
    12,040.80/18,063.71 = 4,143.00/x
  3. Step 3: Cross multiply
    12,040.80x = 18,063.71 × 4,143.00
  4. Step 4: Simplify right side
    12,040.80x = 74,837,911.48
  5. Step 5: Solve for x
    x = 74,837,911.48/12,040.80
  6. Step 6: Final answer
    x = 6,215.36

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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.