Home / 13,746.80-20,622.54-5,422.46

Finding the Fourth Proportional to 13,746.80, 20,622.54 and 5,422.46

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Solution

The fourth proportional to 13,746.80, 20,622.54 and 5,422.46 is: 8,134.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.80 : 20,622.54 = 5,422.46 : x
  2. Step 2: Convert to fraction form
    13,746.80/20,622.54 = 5,422.46/x
  3. Step 3: Cross multiply
    13,746.80x = 20,622.54 × 5,422.46
  4. Step 4: Simplify right side
    13,746.80x = 111,824,898.25
  5. Step 5: Solve for x
    x = 111,824,898.25/13,746.80
  6. Step 6: Final answer
    x = 8,134.61

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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.