Home / 8,156.69-11,257.37-4,619.90

Finding the Fourth Proportional to 8,156.69, 11,257.37 and 4,619.90

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Solution

The fourth proportional to 8,156.69, 11,257.37 and 4,619.90 is: 6,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.69 : 11,257.37 = 4,619.90 : x
  2. Step 2: Convert to fraction form
    8,156.69/11,257.37 = 4,619.90/x
  3. Step 3: Cross multiply
    8,156.69x = 11,257.37 × 4,619.90
  4. Step 4: Simplify right side
    8,156.69x = 52,007,923.66
  5. Step 5: Solve for x
    x = 52,007,923.66/8,156.69
  6. Step 6: Final answer
    x = 6,376.11

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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.