Home / 8,772.28-12,105.82-4,995.26

Finding the Fourth Proportional to 8,772.28, 12,105.82 and 4,995.26

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Solution

The fourth proportional to 8,772.28, 12,105.82 and 4,995.26 is: 6,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.28 : 12,105.82 = 4,995.26 : x
  2. Step 2: Convert to fraction form
    8,772.28/12,105.82 = 4,995.26/x
  3. Step 3: Cross multiply
    8,772.28x = 12,105.82 × 4,995.26
  4. Step 4: Simplify right side
    8,772.28x = 60,471,718.41
  5. Step 5: Solve for x
    x = 60,471,718.41/8,772.28
  6. Step 6: Final answer
    x = 6,893.50

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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.