Home / 13,161.60-19,722.48-5,761.92

Finding the Fourth Proportional to 13,161.60, 19,722.48 and 5,761.92

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Solution

The fourth proportional to 13,161.60, 19,722.48 and 5,761.92 is: 8,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.60 : 19,722.48 = 5,761.92 : x
  2. Step 2: Convert to fraction form
    13,161.60/19,722.48 = 5,761.92/x
  3. Step 3: Cross multiply
    13,161.60x = 19,722.48 × 5,761.92
  4. Step 4: Simplify right side
    13,161.60x = 113,639,351.96
  5. Step 5: Solve for x
    x = 113,639,351.96/13,161.60
  6. Step 6: Final answer
    x = 8,634.16

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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.