Home / 13,396.48-18,487.38-8,091.52

Finding the Fourth Proportional to 13,396.48, 18,487.38 and 8,091.52

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Solution

The fourth proportional to 13,396.48, 18,487.38 and 8,091.52 is: 11,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.48 : 18,487.38 = 8,091.52 : x
  2. Step 2: Convert to fraction form
    13,396.48/18,487.38 = 8,091.52/x
  3. Step 3: Cross multiply
    13,396.48x = 18,487.38 × 8,091.52
  4. Step 4: Simplify right side
    13,396.48x = 149,591,005.02
  5. Step 5: Solve for x
    x = 149,591,005.02/13,396.48
  6. Step 6: Final answer
    x = 11,166.44

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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.