Home / 13,686.92-20,529.36-8,175.27

Finding the Fourth Proportional to 13,686.92, 20,529.36 and 8,175.27

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Solution

The fourth proportional to 13,686.92, 20,529.36 and 8,175.27 is: 12,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.92 : 20,529.36 = 8,175.27 : x
  2. Step 2: Convert to fraction form
    13,686.92/20,529.36 = 8,175.27/x
  3. Step 3: Cross multiply
    13,686.92x = 20,529.36 × 8,175.27
  4. Step 4: Simplify right side
    13,686.92x = 167,833,060.93
  5. Step 5: Solve for x
    x = 167,833,060.93/13,686.92
  6. Step 6: Final answer
    x = 12,262.30

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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.