Home / 12,360.36-18,527.58-5,781

Finding the Fourth Proportional to 12,360.36, 18,527.58 and 5,781

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Solution

The fourth proportional to 12,360.36, 18,527.58 and 5,781 is: 8,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.36 : 18,527.58 = 5,781 : x
  2. Step 2: Convert to fraction form
    12,360.36/18,527.58 = 5,781/x
  3. Step 3: Cross multiply
    12,360.36x = 18,527.58 × 5,781
  4. Step 4: Simplify right side
    12,360.36x = 107,107,939.98
  5. Step 5: Solve for x
    x = 107,107,939.98/12,360.36
  6. Step 6: Final answer
    x = 8,665.44

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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.