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Finding the Fourth Proportional to 7,113.73, 9,819.72 and 6,366.39

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Solution

The fourth proportional to 7,113.73, 9,819.72 and 6,366.39 is: 8,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.73 : 9,819.72 = 6,366.39 : x
  2. Step 2: Convert to fraction form
    7,113.73/9,819.72 = 6,366.39/x
  3. Step 3: Cross multiply
    7,113.73x = 9,819.72 × 6,366.39
  4. Step 4: Simplify right side
    7,113.73x = 62,516,149.62
  5. Step 5: Solve for x
    x = 62,516,149.62/7,113.73
  6. Step 6: Final answer
    x = 8,788.10

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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.