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Finding the Fourth Proportional to 8,730.52, 13,065.54 and 8,367.64

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Solution

The fourth proportional to 8,730.52, 13,065.54 and 8,367.64 is: 12,522.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.52 : 13,065.54 = 8,367.64 : x
  2. Step 2: Convert to fraction form
    8,730.52/13,065.54 = 8,367.64/x
  3. Step 3: Cross multiply
    8,730.52x = 13,065.54 × 8,367.64
  4. Step 4: Simplify right side
    8,730.52x = 109,327,735.13
  5. Step 5: Solve for x
    x = 109,327,735.13/8,730.52
  6. Step 6: Final answer
    x = 12,522.48

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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.