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Finding the Fourth Proportional to 8,472.44, 12,708.72 and 2,628.92

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Solution

The fourth proportional to 8,472.44, 12,708.72 and 2,628.92 is: 3,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.44 : 12,708.72 = 2,628.92 : x
  2. Step 2: Convert to fraction form
    8,472.44/12,708.72 = 2,628.92/x
  3. Step 3: Cross multiply
    8,472.44x = 12,708.72 × 2,628.92
  4. Step 4: Simplify right side
    8,472.44x = 33,410,208.18
  5. Step 5: Solve for x
    x = 33,410,208.18/8,472.44
  6. Step 6: Final answer
    x = 3,943.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.