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Finding the Fourth Proportional to 18,099.78, 27,140.41 and 7,566.93

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Solution

The fourth proportional to 18,099.78, 27,140.41 and 7,566.93 is: 11,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.78 : 27,140.41 = 7,566.93 : x
  2. Step 2: Convert to fraction form
    18,099.78/27,140.41 = 7,566.93/x
  3. Step 3: Cross multiply
    18,099.78x = 27,140.41 × 7,566.93
  4. Step 4: Simplify right side
    18,099.78x = 205,369,582.64
  5. Step 5: Solve for x
    x = 205,369,582.64/18,099.78
  6. Step 6: Final answer
    x = 11,346.52

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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.