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Finding the Fourth Proportional to 7,478.83, 11,218.24 and 2,213.43

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Solution

The fourth proportional to 7,478.83, 11,218.24 and 2,213.43 is: 3,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.83 : 11,218.24 = 2,213.43 : x
  2. Step 2: Convert to fraction form
    7,478.83/11,218.24 = 2,213.43/x
  3. Step 3: Cross multiply
    7,478.83x = 11,218.24 × 2,213.43
  4. Step 4: Simplify right side
    7,478.83x = 24,830,783.43
  5. Step 5: Solve for x
    x = 24,830,783.43/7,478.83
  6. Step 6: Final answer
    x = 3,320.14

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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.