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Finding the Fourth Proportional to 9,775.32, 14,662.86 and 2,379.78

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Solution

The fourth proportional to 9,775.32, 14,662.86 and 2,379.78 is: 3,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.32 : 14,662.86 = 2,379.78 : x
  2. Step 2: Convert to fraction form
    9,775.32/14,662.86 = 2,379.78/x
  3. Step 3: Cross multiply
    9,775.32x = 14,662.86 × 2,379.78
  4. Step 4: Simplify right side
    9,775.32x = 34,894,380.97
  5. Step 5: Solve for x
    x = 34,894,380.97/9,775.32
  6. Step 6: Final answer
    x = 3,569.64

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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.