Home / 8,768.28-12,100.30-4,991.26

Finding the Fourth Proportional to 8,768.28, 12,100.30 and 4,991.26

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Solution

The fourth proportional to 8,768.28, 12,100.30 and 4,991.26 is: 6,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.28 : 12,100.30 = 4,991.26 : x
  2. Step 2: Convert to fraction form
    8,768.28/12,100.30 = 4,991.26/x
  3. Step 3: Cross multiply
    8,768.28x = 12,100.30 × 4,991.26
  4. Step 4: Simplify right side
    8,768.28x = 60,395,743.38
  5. Step 5: Solve for x
    x = 60,395,743.38/8,768.28
  6. Step 6: Final answer
    x = 6,887.98

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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.