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Finding the Fourth Proportional to 7,404.40, 10,218.35 and 4,047.44

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Solution

The fourth proportional to 7,404.40, 10,218.35 and 4,047.44 is: 5,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.40 : 10,218.35 = 4,047.44 : x
  2. Step 2: Convert to fraction form
    7,404.40/10,218.35 = 4,047.44/x
  3. Step 3: Cross multiply
    7,404.40x = 10,218.35 × 4,047.44
  4. Step 4: Simplify right side
    7,404.40x = 41,358,112.74
  5. Step 5: Solve for x
    x = 41,358,112.74/7,404.40
  6. Step 6: Final answer
    x = 5,585.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.