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Finding the Fourth Proportional to 7,388.55, 11,073.20 and 3,000.88

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Solution

The fourth proportional to 7,388.55, 11,073.20 and 3,000.88 is: 4,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.55 : 11,073.20 = 3,000.88 : x
  2. Step 2: Convert to fraction form
    7,388.55/11,073.20 = 3,000.88/x
  3. Step 3: Cross multiply
    7,388.55x = 11,073.20 × 3,000.88
  4. Step 4: Simplify right side
    7,388.55x = 33,229,274.05
  5. Step 5: Solve for x
    x = 33,229,274.05/7,388.55
  6. Step 6: Final answer
    x = 4,497.40

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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.