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Finding the Fourth Proportional to 12,369.92, 18,549.81 and 6,127.65

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Solution

The fourth proportional to 12,369.92, 18,549.81 and 6,127.65 is: 9,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.92 : 18,549.81 = 6,127.65 : x
  2. Step 2: Convert to fraction form
    12,369.92/18,549.81 = 6,127.65/x
  3. Step 3: Cross multiply
    12,369.92x = 18,549.81 × 6,127.65
  4. Step 4: Simplify right side
    12,369.92x = 113,666,743.25
  5. Step 5: Solve for x
    x = 113,666,743.25/12,369.92
  6. Step 6: Final answer
    x = 9,188.97

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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.