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Finding the Fourth Proportional to 8,370.97, 12,567.39 and 7,080.64

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Solution

The fourth proportional to 8,370.97, 12,567.39 and 7,080.64 is: 10,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.97 : 12,567.39 = 7,080.64 : x
  2. Step 2: Convert to fraction form
    8,370.97/12,567.39 = 7,080.64/x
  3. Step 3: Cross multiply
    8,370.97x = 12,567.39 × 7,080.64
  4. Step 4: Simplify right side
    8,370.97x = 88,985,164.33
  5. Step 5: Solve for x
    x = 88,985,164.33/8,370.97
  6. Step 6: Final answer
    x = 10,630.21

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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.