Home / 18,617.58-25,693.47-10,660.86

Finding the Fourth Proportional to 18,617.58, 25,693.47 and 10,660.86

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Solution

The fourth proportional to 18,617.58, 25,693.47 and 10,660.86 is: 14,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.58 : 25,693.47 = 10,660.86 : x
  2. Step 2: Convert to fraction form
    18,617.58/25,693.47 = 10,660.86/x
  3. Step 3: Cross multiply
    18,617.58x = 25,693.47 × 10,660.86
  4. Step 4: Simplify right side
    18,617.58x = 273,914,486.58
  5. Step 5: Solve for x
    x = 273,914,486.58/18,617.58
  6. Step 6: Final answer
    x = 14,712.68

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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.