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Finding the Fourth Proportional to 18,188.37, 27,262.32 and 7,655.28

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Solution

The fourth proportional to 18,188.37, 27,262.32 and 7,655.28 is: 11,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.37 : 27,262.32 = 7,655.28 : x
  2. Step 2: Convert to fraction form
    18,188.37/27,262.32 = 7,655.28/x
  3. Step 3: Cross multiply
    18,188.37x = 27,262.32 × 7,655.28
  4. Step 4: Simplify right side
    18,188.37x = 208,700,693.05
  5. Step 5: Solve for x
    x = 208,700,693.05/18,188.37
  6. Step 6: Final answer
    x = 11,474.40

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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.