Home / 8,472.28-12,710.10-2,628.64

Finding the Fourth Proportional to 8,472.28, 12,710.10 and 2,628.64

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Solution

The fourth proportional to 8,472.28, 12,710.10 and 2,628.64 is: 3,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.28 : 12,710.10 = 2,628.64 : x
  2. Step 2: Convert to fraction form
    8,472.28/12,710.10 = 2,628.64/x
  3. Step 3: Cross multiply
    8,472.28x = 12,710.10 × 2,628.64
  4. Step 4: Simplify right side
    8,472.28x = 33,410,277.26
  5. Step 5: Solve for x
    x = 33,410,277.26/8,472.28
  6. Step 6: Final answer
    x = 3,943.48

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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.