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Finding the Fourth Proportional to 9,469.78, 14,207.72 and 4,539.76

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Solution

The fourth proportional to 9,469.78, 14,207.72 and 4,539.76 is: 6,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,469.78 : 14,207.72 = 4,539.76 : x
  2. Step 2: Convert to fraction form
    9,469.78/14,207.72 = 4,539.76/x
  3. Step 3: Cross multiply
    9,469.78x = 14,207.72 × 4,539.76
  4. Step 4: Simplify right side
    9,469.78x = 64,499,580.73
  5. Step 5: Solve for x
    x = 64,499,580.73/9,469.78
  6. Step 6: Final answer
    x = 6,811.10

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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.