Home / 13,640.36-20,499.06-8,094.74

Finding the Fourth Proportional to 13,640.36, 20,499.06 and 8,094.74

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Solution

The fourth proportional to 13,640.36, 20,499.06 and 8,094.74 is: 12,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.36 : 20,499.06 = 8,094.74 : x
  2. Step 2: Convert to fraction form
    13,640.36/20,499.06 = 8,094.74/x
  3. Step 3: Cross multiply
    13,640.36x = 20,499.06 × 8,094.74
  4. Step 4: Simplify right side
    13,640.36x = 165,934,560.94
  5. Step 5: Solve for x
    x = 165,934,560.94/13,640.36
  6. Step 6: Final answer
    x = 12,164.97

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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.