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Finding the Fourth Proportional to 7,404.15, 10,218 and 4,047.19

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Solution

The fourth proportional to 7,404.15, 10,218 and 4,047.19 is: 5,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.15 : 10,218 = 4,047.19 : x
  2. Step 2: Convert to fraction form
    7,404.15/10,218 = 4,047.19/x
  3. Step 3: Cross multiply
    7,404.15x = 10,218 × 4,047.19
  4. Step 4: Simplify right side
    7,404.15x = 41,354,161.88
  5. Step 5: Solve for x
    x = 41,354,161.88/7,404.15
  6. Step 6: Final answer
    x = 5,585.27

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1.5x scale

Why These Related Problems?

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