Home / 13,622.62-20,426.52-4,258.60

Finding the Fourth Proportional to 13,622.62, 20,426.52 and 4,258.60

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Solution

The fourth proportional to 13,622.62, 20,426.52 and 4,258.60 is: 6,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.62 : 20,426.52 = 4,258.60 : x
  2. Step 2: Convert to fraction form
    13,622.62/20,426.52 = 4,258.60/x
  3. Step 3: Cross multiply
    13,622.62x = 20,426.52 × 4,258.60
  4. Step 4: Simplify right side
    13,622.62x = 86,988,378.07
  5. Step 5: Solve for x
    x = 86,988,378.07/13,622.62
  6. Step 6: Final answer
    x = 6,385.58

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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.