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Finding the Fourth Proportional to 8,348.71, 11,520.79 and 4,571.19

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Solution

The fourth proportional to 8,348.71, 11,520.79 and 4,571.19 is: 6,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.71 : 11,520.79 = 4,571.19 : x
  2. Step 2: Convert to fraction form
    8,348.71/11,520.79 = 4,571.19/x
  3. Step 3: Cross multiply
    8,348.71x = 11,520.79 × 4,571.19
  4. Step 4: Simplify right side
    8,348.71x = 52,663,720.04
  5. Step 5: Solve for x
    x = 52,663,720.04/8,348.71
  6. Step 6: Final answer
    x = 6,308.01

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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.