Home / 15,211.96-20,992.27-8,497.68

Finding the Fourth Proportional to 15,211.96, 20,992.27 and 8,497.68

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Solution

The fourth proportional to 15,211.96, 20,992.27 and 8,497.68 is: 11,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.96 : 20,992.27 = 8,497.68 : x
  2. Step 2: Convert to fraction form
    15,211.96/20,992.27 = 8,497.68/x
  3. Step 3: Cross multiply
    15,211.96x = 20,992.27 × 8,497.68
  4. Step 4: Simplify right side
    15,211.96x = 178,385,592.93
  5. Step 5: Solve for x
    x = 178,385,592.93/15,211.96
  6. Step 6: Final answer
    x = 11,726.67

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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.