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Finding the Fourth Proportional to 8,953, 12,366.76 and 6,815.54

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Solution

The fourth proportional to 8,953, 12,366.76 and 6,815.54 is: 9,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953 : 12,366.76 = 6,815.54 : x
  2. Step 2: Convert to fraction form
    8,953/12,366.76 = 6,815.54/x
  3. Step 3: Cross multiply
    8,953x = 12,366.76 × 6,815.54
  4. Step 4: Simplify right side
    8,953x = 84,286,147.45
  5. Step 5: Solve for x
    x = 84,286,147.45/8,953
  6. Step 6: Final answer
    x = 9,414.29

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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.