Home / 11,975.56-16,526.69-6,939.79

Finding the Fourth Proportional to 11,975.56, 16,526.69 and 6,939.79

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Solution

The fourth proportional to 11,975.56, 16,526.69 and 6,939.79 is: 9,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.56 : 16,526.69 = 6,939.79 : x
  2. Step 2: Convert to fraction form
    11,975.56/16,526.69 = 6,939.79/x
  3. Step 3: Cross multiply
    11,975.56x = 16,526.69 × 6,939.79
  4. Step 4: Simplify right side
    11,975.56x = 114,691,723.30
  5. Step 5: Solve for x
    x = 114,691,723.30/11,975.56
  6. Step 6: Final answer
    x = 9,577.15

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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.