Home / 8,106.91-11,187.53-4,380.91

Finding the Fourth Proportional to 8,106.91, 11,187.53 and 4,380.91

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Solution

The fourth proportional to 8,106.91, 11,187.53 and 4,380.91 is: 6,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.91 : 11,187.53 = 4,380.91 : x
  2. Step 2: Convert to fraction form
    8,106.91/11,187.53 = 4,380.91/x
  3. Step 3: Cross multiply
    8,106.91x = 11,187.53 × 4,380.91
  4. Step 4: Simplify right side
    8,106.91x = 49,011,573.00
  5. Step 5: Solve for x
    x = 49,011,573.00/8,106.91
  6. Step 6: Final answer
    x = 6,045.65

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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.