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Finding the Fourth Proportional to 8,214.55, 11,328.39 and 6,541.48

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Solution

The fourth proportional to 8,214.55, 11,328.39 and 6,541.48 is: 9,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.55 : 11,328.39 = 6,541.48 : x
  2. Step 2: Convert to fraction form
    8,214.55/11,328.39 = 6,541.48/x
  3. Step 3: Cross multiply
    8,214.55x = 11,328.39 × 6,541.48
  4. Step 4: Simplify right side
    8,214.55x = 74,104,436.62
  5. Step 5: Solve for x
    x = 74,104,436.62/8,214.55
  6. Step 6: Final answer
    x = 9,021.12

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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.