Home / 13,717.20-18,928.62-8,051.34

Finding the Fourth Proportional to 13,717.20, 18,928.62 and 8,051.34

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Solution

The fourth proportional to 13,717.20, 18,928.62 and 8,051.34 is: 11,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.20 : 18,928.62 = 8,051.34 : x
  2. Step 2: Convert to fraction form
    13,717.20/18,928.62 = 8,051.34/x
  3. Step 3: Cross multiply
    13,717.20x = 18,928.62 × 8,051.34
  4. Step 4: Simplify right side
    13,717.20x = 152,400,755.35
  5. Step 5: Solve for x
    x = 152,400,755.35/13,717.20
  6. Step 6: Final answer
    x = 11,110.19

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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.