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Finding the Fourth Proportional to 18,342.96, 27,500.64 and 8,980.08

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Solution

The fourth proportional to 18,342.96, 27,500.64 and 8,980.08 is: 13,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.96 : 27,500.64 = 8,980.08 : x
  2. Step 2: Convert to fraction form
    18,342.96/27,500.64 = 8,980.08/x
  3. Step 3: Cross multiply
    18,342.96x = 27,500.64 × 8,980.08
  4. Step 4: Simplify right side
    18,342.96x = 246,957,947.25
  5. Step 5: Solve for x
    x = 246,957,947.25/18,342.96
  6. Step 6: Final answer
    x = 13,463.36

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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.