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Finding the Fourth Proportional to 8,308.83, 12,398.14 and 8,260.23

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Solution

The fourth proportional to 8,308.83, 12,398.14 and 8,260.23 is: 12,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.83 : 12,398.14 = 8,260.23 : x
  2. Step 2: Convert to fraction form
    8,308.83/12,398.14 = 8,260.23/x
  3. Step 3: Cross multiply
    8,308.83x = 12,398.14 × 8,260.23
  4. Step 4: Simplify right side
    8,308.83x = 102,411,487.97
  5. Step 5: Solve for x
    x = 102,411,487.97/8,308.83
  6. Step 6: Final answer
    x = 12,325.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.