Home / 18,618.60-25,694.24-10,660.35

Finding the Fourth Proportional to 18,618.60, 25,694.24 and 10,660.35

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Solution

The fourth proportional to 18,618.60, 25,694.24 and 10,660.35 is: 14,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.60 : 25,694.24 = 10,660.35 : x
  2. Step 2: Convert to fraction form
    18,618.60/25,694.24 = 10,660.35/x
  3. Step 3: Cross multiply
    18,618.60x = 25,694.24 × 10,660.35
  4. Step 4: Simplify right side
    18,618.60x = 273,909,538.08
  5. Step 5: Solve for x
    x = 273,909,538.08/18,618.60
  6. Step 6: Final answer
    x = 14,711.61

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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.