Home / 8,072.79-11,126.75-6,157.95

Finding the Fourth Proportional to 8,072.79, 11,126.75 and 6,157.95

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Solution

The fourth proportional to 8,072.79, 11,126.75 and 6,157.95 is: 8,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.79 : 11,126.75 = 6,157.95 : x
  2. Step 2: Convert to fraction form
    8,072.79/11,126.75 = 6,157.95/x
  3. Step 3: Cross multiply
    8,072.79x = 11,126.75 × 6,157.95
  4. Step 4: Simplify right side
    8,072.79x = 68,517,939.37
  5. Step 5: Solve for x
    x = 68,517,939.37/8,072.79
  6. Step 6: Final answer
    x = 8,487.52

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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.