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Finding the Fourth Proportional to 8,520.52, 12,779.10 and 3,588.52

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Solution

The fourth proportional to 8,520.52, 12,779.10 and 3,588.52 is: 5,382.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.52 : 12,779.10 = 3,588.52 : x
  2. Step 2: Convert to fraction form
    8,520.52/12,779.10 = 3,588.52/x
  3. Step 3: Cross multiply
    8,520.52x = 12,779.10 × 3,588.52
  4. Step 4: Simplify right side
    8,520.52x = 45,858,055.93
  5. Step 5: Solve for x
    x = 45,858,055.93/8,520.52
  6. Step 6: Final answer
    x = 5,382.07

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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.