Home / 12,108.75-16,704.36-8,573.91

Finding the Fourth Proportional to 12,108.75, 16,704.36 and 8,573.91

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Solution

The fourth proportional to 12,108.75, 16,704.36 and 8,573.91 is: 11,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.75 : 16,704.36 = 8,573.91 : x
  2. Step 2: Convert to fraction form
    12,108.75/16,704.36 = 8,573.91/x
  3. Step 3: Cross multiply
    12,108.75x = 16,704.36 × 8,573.91
  4. Step 4: Simplify right side
    12,108.75x = 143,221,679.25
  5. Step 5: Solve for x
    x = 143,221,679.25/12,108.75
  6. Step 6: Final answer
    x = 11,827.95

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Double scale
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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.