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Finding the Fourth Proportional to 8,553.43, 12,830.87 and 3,006.29

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Solution

The fourth proportional to 8,553.43, 12,830.87 and 3,006.29 is: 4,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.43 : 12,830.87 = 3,006.29 : x
  2. Step 2: Convert to fraction form
    8,553.43/12,830.87 = 3,006.29/x
  3. Step 3: Cross multiply
    8,553.43x = 12,830.87 × 3,006.29
  4. Step 4: Simplify right side
    8,553.43x = 38,573,301.14
  5. Step 5: Solve for x
    x = 38,573,301.14/8,553.43
  6. Step 6: Final answer
    x = 4,509.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.