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Finding the Fourth Proportional to 7,308.30, 10,930.05 and 6,141.90

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Solution

The fourth proportional to 7,308.30, 10,930.05 and 6,141.90 is: 9,185.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.30 : 10,930.05 = 6,141.90 : x
  2. Step 2: Convert to fraction form
    7,308.30/10,930.05 = 6,141.90/x
  3. Step 3: Cross multiply
    7,308.30x = 10,930.05 × 6,141.90
  4. Step 4: Simplify right side
    7,308.30x = 67,131,274.10
  5. Step 5: Solve for x
    x = 67,131,274.10/7,308.30
  6. Step 6: Final answer
    x = 9,185.62

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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.