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Finding the Fourth Proportional to 8,550.55, 12,815.03 and 6,239.35

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Solution

The fourth proportional to 8,550.55, 12,815.03 and 6,239.35 is: 9,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550.55 : 12,815.03 = 6,239.35 : x
  2. Step 2: Convert to fraction form
    8,550.55/12,815.03 = 6,239.35/x
  3. Step 3: Cross multiply
    8,550.55x = 12,815.03 × 6,239.35
  4. Step 4: Simplify right side
    8,550.55x = 79,957,426.23
  5. Step 5: Solve for x
    x = 79,957,426.23/8,550.55
  6. Step 6: Final answer
    x = 9,351.14

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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.