Home / 11,682.56-16,094.28-8,139.44

Finding the Fourth Proportional to 11,682.56, 16,094.28 and 8,139.44

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Solution

The fourth proportional to 11,682.56, 16,094.28 and 8,139.44 is: 11,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.56 : 16,094.28 = 8,139.44 : x
  2. Step 2: Convert to fraction form
    11,682.56/16,094.28 = 8,139.44/x
  3. Step 3: Cross multiply
    11,682.56x = 16,094.28 × 8,139.44
  4. Step 4: Simplify right side
    11,682.56x = 130,998,426.40
  5. Step 5: Solve for x
    x = 130,998,426.40/11,682.56
  6. Step 6: Final answer
    x = 11,213.16

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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.