Home / 7,819.31-11,733.18-5,682.40

Finding the Fourth Proportional to 7,819.31, 11,733.18 and 5,682.40

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Solution

The fourth proportional to 7,819.31, 11,733.18 and 5,682.40 is: 8,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.31 : 11,733.18 = 5,682.40 : x
  2. Step 2: Convert to fraction form
    7,819.31/11,733.18 = 5,682.40/x
  3. Step 3: Cross multiply
    7,819.31x = 11,733.18 × 5,682.40
  4. Step 4: Simplify right side
    7,819.31x = 66,672,653.37
  5. Step 5: Solve for x
    x = 66,672,653.37/7,819.31
  6. Step 6: Final answer
    x = 8,526.67

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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.