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Finding the Fourth Proportional to 10,808.64, 16,215.39 and 8,852.49

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Solution

The fourth proportional to 10,808.64, 16,215.39 and 8,852.49 is: 13,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.64 : 16,215.39 = 8,852.49 : x
  2. Step 2: Convert to fraction form
    10,808.64/16,215.39 = 8,852.49/x
  3. Step 3: Cross multiply
    10,808.64x = 16,215.39 × 8,852.49
  4. Step 4: Simplify right side
    10,808.64x = 143,546,577.82
  5. Step 5: Solve for x
    x = 143,546,577.82/10,808.64
  6. Step 6: Final answer
    x = 13,280.73

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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.