Home / 12,078.43-16,660.55-8,726.16

Finding the Fourth Proportional to 12,078.43, 16,660.55 and 8,726.16

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Solution

The fourth proportional to 12,078.43, 16,660.55 and 8,726.16 is: 12,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.43 : 16,660.55 = 8,726.16 : x
  2. Step 2: Convert to fraction form
    12,078.43/16,660.55 = 8,726.16/x
  3. Step 3: Cross multiply
    12,078.43x = 16,660.55 × 8,726.16
  4. Step 4: Simplify right side
    12,078.43x = 145,382,624.99
  5. Step 5: Solve for x
    x = 145,382,624.99/12,078.43
  6. Step 6: Final answer
    x = 12,036.55

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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.