Home / 8,106.66-11,187.19-4,380.66

Finding the Fourth Proportional to 8,106.66, 11,187.19 and 4,380.66

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Solution

The fourth proportional to 8,106.66, 11,187.19 and 4,380.66 is: 6,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.66 : 11,187.19 = 4,380.66 : x
  2. Step 2: Convert to fraction form
    8,106.66/11,187.19 = 4,380.66/x
  3. Step 3: Cross multiply
    8,106.66x = 11,187.19 × 4,380.66
  4. Step 4: Simplify right side
    8,106.66x = 49,007,264.79
  5. Step 5: Solve for x
    x = 49,007,264.79/8,106.66
  6. Step 6: Final answer
    x = 6,045.31

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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.