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Finding the Fourth Proportional to 9,965.48, 14,937.97 and 4,421.44

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Solution

The fourth proportional to 9,965.48, 14,937.97 and 4,421.44 is: 6,627.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965.48 : 14,937.97 = 4,421.44 : x
  2. Step 2: Convert to fraction form
    9,965.48/14,937.97 = 4,421.44/x
  3. Step 3: Cross multiply
    9,965.48x = 14,937.97 × 4,421.44
  4. Step 4: Simplify right side
    9,965.48x = 66,047,289.68
  5. Step 5: Solve for x
    x = 66,047,289.68/9,965.48
  6. Step 6: Final answer
    x = 6,627.61

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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.