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Finding the Fourth Proportional to 10,883.80, 16,327.14 and 3,485.80

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Solution

The fourth proportional to 10,883.80, 16,327.14 and 3,485.80 is: 5,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,883.80 : 16,327.14 = 3,485.80 : x
  2. Step 2: Convert to fraction form
    10,883.80/16,327.14 = 3,485.80/x
  3. Step 3: Cross multiply
    10,883.80x = 16,327.14 × 3,485.80
  4. Step 4: Simplify right side
    10,883.80x = 56,913,144.61
  5. Step 5: Solve for x
    x = 56,913,144.61/10,883.80
  6. Step 6: Final answer
    x = 5,229.16

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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.