Home / 16,660.86-25,002.09-7,905.66

Finding the Fourth Proportional to 16,660.86, 25,002.09 and 7,905.66

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Solution

The fourth proportional to 16,660.86, 25,002.09 and 7,905.66 is: 11,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.86 : 25,002.09 = 7,905.66 : x
  2. Step 2: Convert to fraction form
    16,660.86/25,002.09 = 7,905.66/x
  3. Step 3: Cross multiply
    16,660.86x = 25,002.09 × 7,905.66
  4. Step 4: Simplify right side
    16,660.86x = 197,658,022.83
  5. Step 5: Solve for x
    x = 197,658,022.83/16,660.86
  6. Step 6: Final answer
    x = 11,863.61

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1.5x scale

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.