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Finding the Fourth Proportional to 8,891.14, 12,270.02 and 5,308.18

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Solution

The fourth proportional to 8,891.14, 12,270.02 and 5,308.18 is: 7,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.14 : 12,270.02 = 5,308.18 : x
  2. Step 2: Convert to fraction form
    8,891.14/12,270.02 = 5,308.18/x
  3. Step 3: Cross multiply
    8,891.14x = 12,270.02 × 5,308.18
  4. Step 4: Simplify right side
    8,891.14x = 65,131,474.76
  5. Step 5: Solve for x
    x = 65,131,474.76/8,891.14
  6. Step 6: Final answer
    x = 7,325.44

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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.