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Finding the Fourth Proportional to 18,083.52, 27,127.80 and 8,225.28

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Solution

The fourth proportional to 18,083.52, 27,127.80 and 8,225.28 is: 12,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.52 : 27,127.80 = 8,225.28 : x
  2. Step 2: Convert to fraction form
    18,083.52/27,127.80 = 8,225.28/x
  3. Step 3: Cross multiply
    18,083.52x = 27,127.80 × 8,225.28
  4. Step 4: Simplify right side
    18,083.52x = 223,133,750.78
  5. Step 5: Solve for x
    x = 223,133,750.78/18,083.52
  6. Step 6: Final answer
    x = 12,339.07

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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.