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Finding the Fourth Proportional to 7,434, 11,163.68 and 6,602.88

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Solution

The fourth proportional to 7,434, 11,163.68 and 6,602.88 is: 9,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434 : 11,163.68 = 6,602.88 : x
  2. Step 2: Convert to fraction form
    7,434/11,163.68 = 6,602.88/x
  3. Step 3: Cross multiply
    7,434x = 11,163.68 × 6,602.88
  4. Step 4: Simplify right side
    7,434x = 73,712,439.40
  5. Step 5: Solve for x
    x = 73,712,439.40/7,434
  6. Step 6: Final answer
    x = 9,915.58

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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.