Home / 10,611.85-15,917.76-2,820.67

Finding the Fourth Proportional to 10,611.85, 15,917.76 and 2,820.67

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Solution

The fourth proportional to 10,611.85, 15,917.76 and 2,820.67 is: 4,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.85 : 15,917.76 = 2,820.67 : x
  2. Step 2: Convert to fraction form
    10,611.85/15,917.76 = 2,820.67/x
  3. Step 3: Cross multiply
    10,611.85x = 15,917.76 × 2,820.67
  4. Step 4: Simplify right side
    10,611.85x = 44,898,668.51
  5. Step 5: Solve for x
    x = 44,898,668.51/10,611.85
  6. Step 6: Final answer
    x = 4,230.99

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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.