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Finding the Fourth Proportional to 7,674.32, 10,591.08 and 6,628.88

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Solution

The fourth proportional to 7,674.32, 10,591.08 and 6,628.88 is: 9,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.32 : 10,591.08 = 6,628.88 : x
  2. Step 2: Convert to fraction form
    7,674.32/10,591.08 = 6,628.88/x
  3. Step 3: Cross multiply
    7,674.32x = 10,591.08 × 6,628.88
  4. Step 4: Simplify right side
    7,674.32x = 70,206,998.39
  5. Step 5: Solve for x
    x = 70,206,998.39/7,674.32
  6. Step 6: Final answer
    x = 9,148.30

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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.