Home / 8,772.18-12,105.90-5,234.91

Finding the Fourth Proportional to 8,772.18, 12,105.90 and 5,234.91

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Solution

The fourth proportional to 8,772.18, 12,105.90 and 5,234.91 is: 7,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.18 : 12,105.90 = 5,234.91 : x
  2. Step 2: Convert to fraction form
    8,772.18/12,105.90 = 5,234.91/x
  3. Step 3: Cross multiply
    8,772.18x = 12,105.90 × 5,234.91
  4. Step 4: Simplify right side
    8,772.18x = 63,373,296.97
  5. Step 5: Solve for x
    x = 63,373,296.97/8,772.18
  6. Step 6: Final answer
    x = 7,224.35

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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.