Home / 12,711.41-19,068.93-4,811.79

Finding the Fourth Proportional to 12,711.41, 19,068.93 and 4,811.79

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Solution

The fourth proportional to 12,711.41, 19,068.93 and 4,811.79 is: 7,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.41 : 19,068.93 = 4,811.79 : x
  2. Step 2: Convert to fraction form
    12,711.41/19,068.93 = 4,811.79/x
  3. Step 3: Cross multiply
    12,711.41x = 19,068.93 × 4,811.79
  4. Step 4: Simplify right side
    12,711.41x = 91,755,686.68
  5. Step 5: Solve for x
    x = 91,755,686.68/12,711.41
  6. Step 6: Final answer
    x = 7,218.37

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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.