Home / 12,932.76-19,386.77-4,161.50

Finding the Fourth Proportional to 12,932.76, 19,386.77 and 4,161.50

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Solution

The fourth proportional to 12,932.76, 19,386.77 and 4,161.50 is: 6,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.76 : 19,386.77 = 4,161.50 : x
  2. Step 2: Convert to fraction form
    12,932.76/19,386.77 = 4,161.50/x
  3. Step 3: Cross multiply
    12,932.76x = 19,386.77 × 4,161.50
  4. Step 4: Simplify right side
    12,932.76x = 80,678,043.36
  5. Step 5: Solve for x
    x = 80,678,043.36/12,932.76
  6. Step 6: Final answer
    x = 6,238.27

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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.