Home / 8,772.21-12,105.81-4,793.49

Finding the Fourth Proportional to 8,772.21, 12,105.81 and 4,793.49

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Solution

The fourth proportional to 8,772.21, 12,105.81 and 4,793.49 is: 6,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.21 : 12,105.81 = 4,793.49 : x
  2. Step 2: Convert to fraction form
    8,772.21/12,105.81 = 4,793.49/x
  3. Step 3: Cross multiply
    8,772.21x = 12,105.81 × 4,793.49
  4. Step 4: Simplify right side
    8,772.21x = 58,029,079.18
  5. Step 5: Solve for x
    x = 58,029,079.18/8,772.21
  6. Step 6: Final answer
    x = 6,615.10

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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.