Home / 8,622.40-11,901.18-5,086.75

Finding the Fourth Proportional to 8,622.40, 11,901.18 and 5,086.75

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Solution

The fourth proportional to 8,622.40, 11,901.18 and 5,086.75 is: 7,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.40 : 11,901.18 = 5,086.75 : x
  2. Step 2: Convert to fraction form
    8,622.40/11,901.18 = 5,086.75/x
  3. Step 3: Cross multiply
    8,622.40x = 11,901.18 × 5,086.75
  4. Step 4: Simplify right side
    8,622.40x = 60,538,327.37
  5. Step 5: Solve for x
    x = 60,538,327.37/8,622.40
  6. Step 6: Final answer
    x = 7,021.05

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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.