Home / 11,681.05-16,119.94-6,375.89

Finding the Fourth Proportional to 11,681.05, 16,119.94 and 6,375.89

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Solution

The fourth proportional to 11,681.05, 16,119.94 and 6,375.89 is: 8,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.05 : 16,119.94 = 6,375.89 : x
  2. Step 2: Convert to fraction form
    11,681.05/16,119.94 = 6,375.89/x
  3. Step 3: Cross multiply
    11,681.05x = 16,119.94 × 6,375.89
  4. Step 4: Simplify right side
    11,681.05x = 102,778,964.25
  5. Step 5: Solve for x
    x = 102,778,964.25/11,681.05
  6. Step 6: Final answer
    x = 8,798.78

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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.