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Finding the Fourth Proportional to 18,130.98, 27,201.06 and 8,775.48

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Solution

The fourth proportional to 18,130.98, 27,201.06 and 8,775.48 is: 13,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.98 : 27,201.06 = 8,775.48 : x
  2. Step 2: Convert to fraction form
    18,130.98/27,201.06 = 8,775.48/x
  3. Step 3: Cross multiply
    18,130.98x = 27,201.06 × 8,775.48
  4. Step 4: Simplify right side
    18,130.98x = 238,702,358.01
  5. Step 5: Solve for x
    x = 238,702,358.01/18,130.98
  6. Step 6: Final answer
    x = 13,165.44

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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.