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Finding the Fourth Proportional to 7,354.26, 10,119.24 and 7,179.30

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Solution

The fourth proportional to 7,354.26, 10,119.24 and 7,179.30 is: 9,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.26 : 10,119.24 = 7,179.30 : x
  2. Step 2: Convert to fraction form
    7,354.26/10,119.24 = 7,179.30/x
  3. Step 3: Cross multiply
    7,354.26x = 10,119.24 × 7,179.30
  4. Step 4: Simplify right side
    7,354.26x = 72,649,059.73
  5. Step 5: Solve for x
    x = 72,649,059.73/7,354.26
  6. Step 6: Final answer
    x = 9,878.50

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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.