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Finding the Fourth Proportional to 9,218.78, 13,828.62 and 5,544.62

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Solution

The fourth proportional to 9,218.78, 13,828.62 and 5,544.62 is: 8,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.78 : 13,828.62 = 5,544.62 : x
  2. Step 2: Convert to fraction form
    9,218.78/13,828.62 = 5,544.62/x
  3. Step 3: Cross multiply
    9,218.78x = 13,828.62 × 5,544.62
  4. Step 4: Simplify right side
    9,218.78x = 76,674,446.53
  5. Step 5: Solve for x
    x = 76,674,446.53/9,218.78
  6. Step 6: Final answer
    x = 8,317.20

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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.