Home / 13,717.92-18,930.60-8,052.78

Finding the Fourth Proportional to 13,717.92, 18,930.60 and 8,052.78

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Solution

The fourth proportional to 13,717.92, 18,930.60 and 8,052.78 is: 11,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.92 : 18,930.60 = 8,052.78 : x
  2. Step 2: Convert to fraction form
    13,717.92/18,930.60 = 8,052.78/x
  3. Step 3: Cross multiply
    13,717.92x = 18,930.60 × 8,052.78
  4. Step 4: Simplify right side
    13,717.92x = 152,443,957.07
  5. Step 5: Solve for x
    x = 152,443,957.07/13,717.92
  6. Step 6: Final answer
    x = 11,112.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.