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Finding the Fourth Proportional to 8,819.68, 13,203.60 and 6,957.76

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Solution

The fourth proportional to 8,819.68, 13,203.60 and 6,957.76 is: 10,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.68 : 13,203.60 = 6,957.76 : x
  2. Step 2: Convert to fraction form
    8,819.68/13,203.60 = 6,957.76/x
  3. Step 3: Cross multiply
    8,819.68x = 13,203.60 × 6,957.76
  4. Step 4: Simplify right side
    8,819.68x = 91,867,479.94
  5. Step 5: Solve for x
    x = 91,867,479.94/8,819.68
  6. Step 6: Final answer
    x = 10,416.19

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1.5x scale

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.