Home / 10,769.22-16,178.14-6,389.56

Finding the Fourth Proportional to 10,769.22, 16,178.14 and 6,389.56

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Solution

The fourth proportional to 10,769.22, 16,178.14 and 6,389.56 is: 9,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.22 : 16,178.14 = 6,389.56 : x
  2. Step 2: Convert to fraction form
    10,769.22/16,178.14 = 6,389.56/x
  3. Step 3: Cross multiply
    10,769.22x = 16,178.14 × 6,389.56
  4. Step 4: Simplify right side
    10,769.22x = 103,371,196.22
  5. Step 5: Solve for x
    x = 103,371,196.22/10,769.22
  6. Step 6: Final answer
    x = 9,598.76

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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.