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Finding the Fourth Proportional to 9,345.44, 14,019.84 and 3,188

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Solution

The fourth proportional to 9,345.44, 14,019.84 and 3,188 is: 4,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.44 : 14,019.84 = 3,188 : x
  2. Step 2: Convert to fraction form
    9,345.44/14,019.84 = 3,188/x
  3. Step 3: Cross multiply
    9,345.44x = 14,019.84 × 3,188
  4. Step 4: Simplify right side
    9,345.44x = 44,695,249.92
  5. Step 5: Solve for x
    x = 44,695,249.92/9,345.44
  6. Step 6: Final answer
    x = 4,782.57

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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.