Home / 18,686.52-25,789.20-13,962.60

Finding the Fourth Proportional to 18,686.52, 25,789.20 and 13,962.60

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Solution

The fourth proportional to 18,686.52, 25,789.20 and 13,962.60 is: 19,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.52 : 25,789.20 = 13,962.60 : x
  2. Step 2: Convert to fraction form
    18,686.52/25,789.20 = 13,962.60/x
  3. Step 3: Cross multiply
    18,686.52x = 25,789.20 × 13,962.60
  4. Step 4: Simplify right side
    18,686.52x = 360,084,283.92
  5. Step 5: Solve for x
    x = 360,084,283.92/18,686.52
  6. Step 6: Final answer
    x = 19,269.73

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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.