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Finding the Fourth Proportional to 10,618.30, 14,654.02 and 6,369.54

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Solution

The fourth proportional to 10,618.30, 14,654.02 and 6,369.54 is: 8,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.30 : 14,654.02 = 6,369.54 : x
  2. Step 2: Convert to fraction form
    10,618.30/14,654.02 = 6,369.54/x
  3. Step 3: Cross multiply
    10,618.30x = 14,654.02 × 6,369.54
  4. Step 4: Simplify right side
    10,618.30x = 93,339,334.70
  5. Step 5: Solve for x
    x = 93,339,334.70/10,618.30
  6. Step 6: Final answer
    x = 8,790.42

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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.