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Finding the Fourth Proportional to 8,665.35, 12,998.83 and 2,425.35

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Solution

The fourth proportional to 8,665.35, 12,998.83 and 2,425.35 is: 3,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.35 : 12,998.83 = 2,425.35 : x
  2. Step 2: Convert to fraction form
    8,665.35/12,998.83 = 2,425.35/x
  3. Step 3: Cross multiply
    8,665.35x = 12,998.83 × 2,425.35
  4. Step 4: Simplify right side
    8,665.35x = 31,526,712.34
  5. Step 5: Solve for x
    x = 31,526,712.34/8,665.35
  6. Step 6: Final answer
    x = 3,638.25

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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.