Home / 7,947.76-10,958.56-6,450.96

Finding the Fourth Proportional to 7,947.76, 10,958.56 and 6,450.96

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Solution

The fourth proportional to 7,947.76, 10,958.56 and 6,450.96 is: 8,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.76 : 10,958.56 = 6,450.96 : x
  2. Step 2: Convert to fraction form
    7,947.76/10,958.56 = 6,450.96/x
  3. Step 3: Cross multiply
    7,947.76x = 10,958.56 × 6,450.96
  4. Step 4: Simplify right side
    7,947.76x = 70,693,232.22
  5. Step 5: Solve for x
    x = 70,693,232.22/7,947.76
  6. Step 6: Final answer
    x = 8,894.74

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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.