Home / 11,553.40-15,943.92-6,777

Finding the Fourth Proportional to 11,553.40, 15,943.92 and 6,777

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Solution

The fourth proportional to 11,553.40, 15,943.92 and 6,777 is: 9,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.40 : 15,943.92 = 6,777 : x
  2. Step 2: Convert to fraction form
    11,553.40/15,943.92 = 6,777/x
  3. Step 3: Cross multiply
    11,553.40x = 15,943.92 × 6,777
  4. Step 4: Simplify right side
    11,553.40x = 108,051,958.55
  5. Step 5: Solve for x
    x = 108,051,958.55/11,553.40
  6. Step 6: Final answer
    x = 9,352.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.