Home / 11,827.72-17,720.70-10,540.63

Finding the Fourth Proportional to 11,827.72, 17,720.70 and 10,540.63

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Solution

The fourth proportional to 11,827.72, 17,720.70 and 10,540.63 is: 15,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,827.72 : 17,720.70 = 10,540.63 : x
  2. Step 2: Convert to fraction form
    11,827.72/17,720.70 = 10,540.63/x
  3. Step 3: Cross multiply
    11,827.72x = 17,720.70 × 10,540.63
  4. Step 4: Simplify right side
    11,827.72x = 186,787,342.04
  5. Step 5: Solve for x
    x = 186,787,342.04/11,827.72
  6. Step 6: Final answer
    x = 15,792.34

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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.