Home / 7,819.92-10,801.08-6,329.52

Finding the Fourth Proportional to 7,819.92, 10,801.08 and 6,329.52

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Solution

The fourth proportional to 7,819.92, 10,801.08 and 6,329.52 is: 8,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.92 : 10,801.08 = 6,329.52 : x
  2. Step 2: Convert to fraction form
    7,819.92/10,801.08 = 6,329.52/x
  3. Step 3: Cross multiply
    7,819.92x = 10,801.08 × 6,329.52
  4. Step 4: Simplify right side
    7,819.92x = 68,365,651.88
  5. Step 5: Solve for x
    x = 68,365,651.88/7,819.92
  6. Step 6: Final answer
    x = 8,742.50

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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.