Home / 8,121.63-11,207.85-4,584.76

Finding the Fourth Proportional to 8,121.63, 11,207.85 and 4,584.76

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Solution

The fourth proportional to 8,121.63, 11,207.85 and 4,584.76 is: 6,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.63 : 11,207.85 = 4,584.76 : x
  2. Step 2: Convert to fraction form
    8,121.63/11,207.85 = 4,584.76/x
  3. Step 3: Cross multiply
    8,121.63x = 11,207.85 × 4,584.76
  4. Step 4: Simplify right side
    8,121.63x = 51,385,302.37
  5. Step 5: Solve for x
    x = 51,385,302.37/8,121.63
  6. Step 6: Final answer
    x = 6,326.97

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Half scale
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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.