Home / 11,326.31-16,991.90-4,748.71

Finding the Fourth Proportional to 11,326.31, 16,991.90 and 4,748.71

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Solution

The fourth proportional to 11,326.31, 16,991.90 and 4,748.71 is: 7,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.31 : 16,991.90 = 4,748.71 : x
  2. Step 2: Convert to fraction form
    11,326.31/16,991.90 = 4,748.71/x
  3. Step 3: Cross multiply
    11,326.31x = 16,991.90 × 4,748.71
  4. Step 4: Simplify right side
    11,326.31x = 80,689,605.45
  5. Step 5: Solve for x
    x = 80,689,605.45/11,326.31
  6. Step 6: Final answer
    x = 7,124.09

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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.