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Finding the Fourth Proportional to 8,855.66, 13,285.67 and 2,615.64

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Solution

The fourth proportional to 8,855.66, 13,285.67 and 2,615.64 is: 3,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.66 : 13,285.67 = 2,615.64 : x
  2. Step 2: Convert to fraction form
    8,855.66/13,285.67 = 2,615.64/x
  3. Step 3: Cross multiply
    8,855.66x = 13,285.67 × 2,615.64
  4. Step 4: Simplify right side
    8,855.66x = 34,750,556.42
  5. Step 5: Solve for x
    x = 34,750,556.42/8,855.66
  6. Step 6: Final answer
    x = 3,924.11

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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.