Home / 13,160.88-18,162.45-8,124.93

Finding the Fourth Proportional to 13,160.88, 18,162.45 and 8,124.93

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Solution

The fourth proportional to 13,160.88, 18,162.45 and 8,124.93 is: 11,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.88 : 18,162.45 = 8,124.93 : x
  2. Step 2: Convert to fraction form
    13,160.88/18,162.45 = 8,124.93/x
  3. Step 3: Cross multiply
    13,160.88x = 18,162.45 × 8,124.93
  4. Step 4: Simplify right side
    13,160.88x = 147,568,634.88
  5. Step 5: Solve for x
    x = 147,568,634.88/13,160.88
  6. Step 6: Final answer
    x = 11,212.67

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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.