Home / 8,158.21-11,258.77-4,622.11

Finding the Fourth Proportional to 8,158.21, 11,258.77 and 4,622.11

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Solution

The fourth proportional to 8,158.21, 11,258.77 and 4,622.11 is: 6,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.21 : 11,258.77 = 4,622.11 : x
  2. Step 2: Convert to fraction form
    8,158.21/11,258.77 = 4,622.11/x
  3. Step 3: Cross multiply
    8,158.21x = 11,258.77 × 4,622.11
  4. Step 4: Simplify right side
    8,158.21x = 52,039,205.56
  5. Step 5: Solve for x
    x = 52,039,205.56/8,158.21
  6. Step 6: Final answer
    x = 6,378.76

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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.