Home / 18,617.07-27,909.91-8,079.15

Finding the Fourth Proportional to 18,617.07, 27,909.91 and 8,079.15

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Solution

The fourth proportional to 18,617.07, 27,909.91 and 8,079.15 is: 12,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.07 : 27,909.91 = 8,079.15 : x
  2. Step 2: Convert to fraction form
    18,617.07/27,909.91 = 8,079.15/x
  3. Step 3: Cross multiply
    18,617.07x = 27,909.91 × 8,079.15
  4. Step 4: Simplify right side
    18,617.07x = 225,488,464.14
  5. Step 5: Solve for x
    x = 225,488,464.14/18,617.07
  6. Step 6: Final answer
    x = 12,111.92

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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.