Home / 13,675.23-18,871.58-8,012.86

Finding the Fourth Proportional to 13,675.23, 18,871.58 and 8,012.86

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Solution

The fourth proportional to 13,675.23, 18,871.58 and 8,012.86 is: 11,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.23 : 18,871.58 = 8,012.86 : x
  2. Step 2: Convert to fraction form
    13,675.23/18,871.58 = 8,012.86/x
  3. Step 3: Cross multiply
    13,675.23x = 18,871.58 × 8,012.86
  4. Step 4: Simplify right side
    13,675.23x = 151,215,301.37
  5. Step 5: Solve for x
    x = 151,215,301.37/13,675.23
  6. Step 6: Final answer
    x = 11,057.61

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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.