Home / 11,988.24-16,534.44-8,213.64

Finding the Fourth Proportional to 11,988.24, 16,534.44 and 8,213.64

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Solution

The fourth proportional to 11,988.24, 16,534.44 and 8,213.64 is: 11,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.24 : 16,534.44 = 8,213.64 : x
  2. Step 2: Convert to fraction form
    11,988.24/16,534.44 = 8,213.64/x
  3. Step 3: Cross multiply
    11,988.24x = 16,534.44 × 8,213.64
  4. Step 4: Simplify right side
    11,988.24x = 135,807,937.76
  5. Step 5: Solve for x
    x = 135,807,937.76/11,988.24
  6. Step 6: Final answer
    x = 11,328.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.