Home / 9,778.56-13,481.01-6,191.70

Finding the Fourth Proportional to 9,778.56, 13,481.01 and 6,191.70

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Solution

The fourth proportional to 9,778.56, 13,481.01 and 6,191.70 is: 8,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.56 : 13,481.01 = 6,191.70 : x
  2. Step 2: Convert to fraction form
    9,778.56/13,481.01 = 6,191.70/x
  3. Step 3: Cross multiply
    9,778.56x = 13,481.01 × 6,191.70
  4. Step 4: Simplify right side
    9,778.56x = 83,470,369.62
  5. Step 5: Solve for x
    x = 83,470,369.62/9,778.56
  6. Step 6: Final answer
    x = 8,536.06

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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.