Home / 7,944.76-10,954.42-6,447.96

Finding the Fourth Proportional to 7,944.76, 10,954.42 and 6,447.96

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Solution

The fourth proportional to 7,944.76, 10,954.42 and 6,447.96 is: 8,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.76 : 10,954.42 = 6,447.96 : x
  2. Step 2: Convert to fraction form
    7,944.76/10,954.42 = 6,447.96/x
  3. Step 3: Cross multiply
    7,944.76x = 10,954.42 × 6,447.96
  4. Step 4: Simplify right side
    7,944.76x = 70,633,661.98
  5. Step 5: Solve for x
    x = 70,633,661.98/7,944.76
  6. Step 6: Final answer
    x = 8,890.60

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Half scale
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Double scale
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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.