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Finding the Fourth Proportional to 10,669.06, 16,003.84 and 8,479.34

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Solution

The fourth proportional to 10,669.06, 16,003.84 and 8,479.34 is: 12,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.06 : 16,003.84 = 8,479.34 : x
  2. Step 2: Convert to fraction form
    10,669.06/16,003.84 = 8,479.34/x
  3. Step 3: Cross multiply
    10,669.06x = 16,003.84 × 8,479.34
  4. Step 4: Simplify right side
    10,669.06x = 135,702,000.67
  5. Step 5: Solve for x
    x = 135,702,000.67/10,669.06
  6. Step 6: Final answer
    x = 12,719.21

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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.